Megathread - Roblox crashes, shows an error, or refuses to open

[pizzaboxer]

Because of how common this issue is, I think it would be best to have this thread which people can comment on, instead of having to open a new individual issue each time, which eventually get closed.

This is primarily made in hopes that we can gather together more solutions here to add to the informational Wiki page.

By the way, if you haven't read it yet, read it. Now.

As that page says - If your problem is only happening with Bloxstrap, then please open an issue.

Otherwise, feel free to drop in here.

Related: Some sort of fix for the SensApi.dll (#540)

[ghost]

Not completely sure if this is exclusive to Bloxstrap or some sort of incompatibility with my setup, but every now and then when I launch Roblox I get an error message which says "Failed to load library: sensapi.dll" and it gives me an option to create a .tmp file which I have no idea how to decompile, but I can provide it on request (github won't let me share .tmp)

It doesn't show up every time, but I notice when I use something like Medal (clipping software) Roblox refuses to launch at all and repeatedly comes up with the same error, so I have a feeling it might somehow be related to Byfron

so far, I haven't been able to reproduce this with the regular roblox client, but here's a list of things i've seen correlating to this:

• has happened on multiple different windows installs
• 100% chance of happening with something attaching to the client like medal.tv, may be byfron but assuming it's been flagging it, this doesn't make sense considering it doesn't close roblox if medal.tv is opened after launching roblox
• seems to happen more often in the first few minutes the pc is turned on, might be something like file indexing idk

that's basically all though

[pizzaboxer]

Hm, I'll try out Medal. If I find that to be consistent, then I'll add it to the wiki page.

but I can provide it on request

That's for Roblox, I won't be able to do anything with it.

seems to happen more often in the first few minutes the pc is turned on, might be something like file indexing idk

Does clearing cached thumbnails fix this?

[ghost]

The issue seems to have fixed itself - I haven't been able to reproduce it anymore, not even with Medal, and I haven't tried clearing thumbnails yet, so I can't test this. If the issues does come back and start happening consistently, I'll give it a try

[Cosinu-s]

The game does crash after a few minutes, it starts by a short freeze, then closes the game without sending any error or crash report, I use windows 11 on a computer that ran windows 10 before the update but I don't think that's the origin of the crash.. I have installed the 2.5.2 version of bloxstrap also, it haven't fixed the problem yet...

[Cosinu-s]

The game does crash after a few minutes, it starts by a short freeze, then closes the game without sending any error or crash report, I use windows 11 on a computer that ran windows 10 before the update but I don't think that's the origin of the crash.. I have installed the 2.5.2 version of bloxstrap also, it haven't fixed the problem yet...

I discovered that the crashing problem of mine was caused by the game I am playing a lot, 'Plane Crazy' and is not due to the bloxstrap client I am using, my apologies for the incovenience.

Plane Crazy is a game I use to play a lot, and due to it's hardcoding, a roblox update might have made this game unstable, I have been testing bloxstrap on other games and the crashing problem nether occured on theses other games.

[pizzaboxer]

By the way, if you guys haven't seen:

https://devforum.roblox.com/t/crash-reports-from-specific-trusted-players-in-specific-games/2571456
https://devforum.roblox.com/t/specific-game-keeps-crashing-nbever-happened-before/2577584/2

[cellat1]

https://www.wikihow.com/Why-Does-Roblox-Keep-Crashing#:~:text=Try%20clearing%20the%20Roblox%20cache,fails%2C%20uninstall%20and%20reinstall%20Roblox

do everything on this site and close ur pc for like 12 hours then try again

[LolloDev5123]

When I use Bloxstrap or the standard Roblox launcher, it shows the loading screen and then refuses to open.
It is probably because of Hyperion detecting some process, however I don't use RTSS/Afterburner or other tuner applications.
Is there a way to see which process triggered Hyperion? I also found some suspicious processes (such as OMEN Optimizer) and killed them, however Roblox still refuses to load.

I think the problem was fixed for those who killed their respective triggering processes, but I fear that Hyperion may have banned/flagged my windows user and that I have to create a new one to play again.

[pizzaboxer]

Is there a way to see which process triggered Hyperion? I also found some suspicious processes (such as OMEN Optimizer) and killed them, however Roblox still refuses to load.

For this type of crash, I don't think so, no.

[danekxd]

yeah well the game only gets into the home page then crashes seconds later when relaunching the game frozes and gives not responding state, ms store runs perfectly fine but its bad since it doesn't have voice chat feature, seems like the issue here is byfron

[SkaarChill]

A fix which helped me a few months ago when roblox kept saying it encountered an unrecoverable error and crashed is disabling virtualization from BIOS, apparently Virtualization technology f*cks up with the Roblox client, crashing it immediately, so if you are a person who uses emulators and also plays roblox, sorry for your loss.

[LolMakesStuff]

The problem I have is the one where it just opens for a few seconds and crashes. This only started when i got Bloxstrap and effected the normal roblox client as well.

Like LolloDev said, I think Hyperion hardware banned me from roblox, since the same problem effects the windows store client and mobile client (emulated from bluestacks)

The only option I haven't tried is reseting it, tried reinstalling windows, booting into safe mode, uninstalling updates, etc

Hopefully this can be fixed soon so I don't have to resort to stretching my thin steam library dry.

[simpleDeveloper11]

whenever i try to launch roblox with bloxstrap it doesnt work, but if i delete blox strap works perfectly fine

[T0x1cL]

When using Voxel lightning, game seems to crash after some time. (I have only played Cursed Tank Simulator recently, and don't know if this is also occurring on other games)

Edit: (it does, but it's a D3D11 FATAL ERROR: Device removed with reason 0x887a0006 so i think it's a roblox error. iirc happens without bloxstrap too)

[WaviestBalloon]

When using Voxel lightning, game seems to crash after some time. (I have only played Cursed Tank Simulator recently, and don't know if this is also occurring on other games)

Please do test on other games before claiming it crashes "after some time", it seems like you're having the same issue as the majority of people are currently experiencing, note that this isn't isolated to Bloxstrap but to even UWP and normal vanilla clients.

See this thread: #828

[Kyomi1]

I found a fix for roblox refusing to open or roblox not launching. All i did is i install avast antivirus and then i launch roblox it works

[WaviestBalloon]

I found a fix for roblox refusing to open or roblox not launching. All i did is i install avast antivirus and then i launch roblox it works

This definitely did not fix it, most likely a one off or that you might have had malware present on your machine.

[Drag0nK]

has it been fixed i still cant play

[WaviestBalloon]

has it been fixed i still cant play

We are unsure, it seems to be currently on and off.

[Drag0nK]

any fixes yet?

[Drag0nK]

only UWP works for me

[Drag0nK]

the windows version

[WaviestBalloon]

Apologies for that! I was not sure where to go and didn't intend to get off track with the shader Fastflags, I'll do that as soon as I can, thank you!

You have probably already been aware, but as a quick update, multi-instancing is being removed in the next release of Bloxstrap due to it's unreliability.

[CitizenFoffie]

I can't start Roblox anymore, everytime I press the play button the RobloxPlayerBeta never starts up, and after a very long time gives me an error message like "Clean Install Windows" or just that the client has crashed, I have uninstalled bloxstrap, but before I did or when I reinstall it, it'll start Bloxstrap and load, and then it'll close.

[WaviestBalloon]

I can't start Roblox anymore, everytime I press the play button the RobloxPlayerBeta never starts up, and after a very long time gives me an error message like "Clean Install Windows" or just that the client has crashed

You seem to be facing a issue regarding Hyperion, I'm guessing this also happens on the normal client? If so, reach out to Roblox support.

[CitizenFoffie]

I have made a ticket, I think it is a bloxstrap issue still, because I can swear the Roblox install is what the Progress looks like with Bloxstrap, I have uninstalled every file I can find of Bloxstrap though

[WaviestBalloon]

I have uninstalled every file I can find of Bloxstrap though

I hope you mean you've uninstalled it, via the Add or remove programs settings, please don't just randomly delete files as no files should be left over from correctly uninstalling Bloxstrap.

[CitizenFoffie]

I have fully uninstalled using that also

[account183892]

I am getting HTTP 401 errors when I launch Bloxstrap

Bloxstrap.Exceptions.HttpResponseException: Could not connect to https://clientsettingscdn.roblox.com/v2/client-version/WindowsPlayer/channel/zlive because it returned HTTP 401 (Unauthorized)

[WaviestBalloon]

Could not connect to https://clientsettingscdn.roblox.com/v2/client-version/WindowsPlayer/channel/zlive because it returned HTTP 401 (Unauthorized)

Move off of the zlive deployment channel, it is locked by Roblox, better to stay on the LIVE channel always and to keep to channels Roblox sets you to.

[tigra323]

I am getting HTTP 403 Forbidden when i launch bloxstrap
[DFLog::HttpTraceError] HttpResponse time:461.0ms (net:460.9ms callback:0.0ms timeInRetryQueue:0.0ms)status:403 Forbidden bodySize:113 url:{ "https://auth.roblox.com/v1/authentication-ticket/redeem" } ip:128.116.44.4 external:0 numberOfTimesRetried:0
[FLog::Warning] WebLogin http error: {"errors":[{"code":4,"message":"Authentication ticket was invalid.","userFacingMessage":"Something went wrong"}]}, statusCode: 403
[FLog::Warning] WebLogin authentication is failed and App is quitting
Upd: Reinstalling dont help, clean roblox dont work if i launch from browser(same error)
this was due to the BTRoblox extension

[KUNINSYT]

There is a serious problem Bloxstrap is not working well!!
#1912 (comment)

[whipslayer]

My Roblox works fine but I get Roblox Crash: "An unexpected error occured and Roblox needs to quit. We're Sorry". But I can still run my roblox if I ignore the error message, however if the game requires switching servers via teleport it'll crash like it's supposed to, anyone else have that issue?

[moyaimoment]

My Roblox works fine but I get Roblox Crash: "An unexpected error occured and Roblox needs to quit. We're Sorry". But I can still run my roblox if I ignore the error message, however if the game requires switching servers via teleport it'll crash like it's supposed to, anyone else have that issue?

try removing the fastflag DFFlagVideoCaptureServiceEnabled

[dodecaspheeb]

It has come to my attention that this issue may also be caused by WindowBlinds.

Reverting back to Windows' default theme via the menu was the solution for me that stopped Roblox from running as a background process.
If you have Windowblinds, or another similar theming program (Not Open Shell, thankfully), I suggest doing the same.

[pizzaboxer]

Yes, it is being caused by WindowBlinds. I forgot to add that info to the Wiki, sorry about that.

[whipslayer]

My Roblox works fine but I get Roblox Crash: "An unexpected error occured and Roblox needs to quit. We're Sorry". But I can still run my roblox if I ignore the error message, however if the game requires switching servers via teleport it'll crash like it's supposed to, anyone else have that issue?

try removing the fastflag DFFlagVideoCaptureServiceEnabled

Hey thanks for the potential solution, I gave this a try but it still does the same thing.

[AMD-Edits]

I need help please. Bloxstrap for me keeps crashing every 30-40mins continuously and now the time gaps are just getting shorter every time. I have tested if the same is with regular Roblox and it is not the case.

[AMD-Edits]

Omdddd it is still happening xd. Can someone actually help me

[AMD-Edits]

nvm im good

[Random57g]

the game appears in the task manager as open, but never actually opens.
I don't know if it's a bloxstrap problem, I don't know if it's a Roblox problem, or if it's my PC asking to quit

Note: this problem has been around for a few days, but it has never happened.
no error message or anything appears

[Pantherartin]

Edited

I'm having the same issue. has it not been fixed yet?

[Random57g]

Edited

I'm having the same issue. has it not been fixed yet?

probably

[Random57g]

the game appears in the task manager as open, but never actually opens. I don't know if it's a bloxstrap problem, I don't know if it's a Roblox problem, or if it's my PC asking to quit

Note: this problem has been around for a few days, but it has never happened. no error message or anything appears

I don't think it's a problem with my fastflags, since I already used them and they worked correctly
(I never created/imported one, I only use the default ones, enabling everything that can positively impact my fps)
(ignore the language, its on portuguese)

[AMD-Edits]

Ik what ur issue is

[AMD-Edits]

It is due to the fact you have Riva Tuna Statistics running. Turn this off and then run bloxstrap. If it still doesnt work, lmk ill give you another solution

[SatinFoil]

I keep getting System.IO.DirectoryNotFoundException whenever I join a game.
Bloxstrap_20241016T185035Z.log

[pizzaboxer]

@SatinFoil What's the path of your user profile folder? Open %localappdata% in Explorer and report the full path, censoring your username if needed.

[IncompetentMoron]

i dont know why this happens and how it occurs but when i press play on a game and it shows me the loading screen it eventually gives me an error saying roblox couldnt be started and that it will show me a page on my browser when i close the message, when i closed the message nothing happened

after restarting my computer it still persisted and i got the error, but i didnt bother closing the message this time, and for some reason roblox just loads with all bloxstrap modifications working normally??

i also have the log if it helps
Bloxstrap_20241112T125736Z.log