Errors with more than one project tab

[SoliDeoGloria2]

Hi!

When I use ReaLearn (for example, when I learn a source CC) with more than one project tab in Reaper, this log appears with an error sign :

REAPER version: 6.51+dev0312/linux-x86_64
Module name: ReaLearn
Module version: v2.12.0-pre.4/x86_64 rev cdddd1 (2021-12-30 00:26:59 UTC)
Module base address: -
Module size: -

Message: already borrowed: BorrowMutError

0: 0x7f0bbeee4bf7 -
1: 0x7f0bbeee72f8 -
2: 0x7f0bbedd4965 -
3: 0x7f0bbef289f9 -
4: 0x7f0bbef284b7 -
5: 0x7f0bbef2604c -
6: 0x7f0bbef28419 -
7: 0x7f0bbe4b4981 -
8: 0x7f0bbe4b4a73 -
9: 0x7f0bbe819153 -
10: 0x7f0bbed4ca84 -
11: 0x7f0bbed4ae85 -
12: 0x7f0be39569c6 -
13: 0x7f0be39499e7 -
14: 0x7f0be394edda -
15: 0x7f0be39499e7 -
16: 0x7f0be394c077 -
17: 0x7f0bbee49f57 -
18: 0x7f0bbe8169bd -
19: 0x7f0bbe8163b3 -
20: 0x7f0bbe663fb6 -
21: 0x7f0bbe96e439 -
22: 0x7f0bbe5fcbe7 -
23: 0x7f0bbedabcd1 -
24: 0x7f0bbea730f7 -
25: 0x7f0bbee4a4a2 - cpp_to_rust_IReaperControlSurface_Run
26: 0x63ffd5 -
27: 0x553172 -
28: 0x553a1f -
29: 0x7df75d -
30: 0x7f0be39569c6 -
31: 0x7f0be39499e7 -
32: 0x7f0be3956e17 -
33: 0x40d7b6 -
34: 0x7f0be3c01b25 - __libc_start_main
35: 0x41a70a - _start
36: 0x0 -

I've had, one various occasions, ReaLearn inactive and showing a blank GUI, without any functioning of its mappings (much to my grief in the midst of some live situations during my classes as a music teacher), most probably after something like this -loading various projects with similar Realearn mappings at the same time-.

Any insight will be appreciated.

Thanks!

[helgoboss]

I tried but can't reproduce this. I need:

• The set of test projects (one per tab) that cause this situations. These test projects must be minimal, not use any third-party plug-ins.
• Your reaper.ini
• A description what clicks are necessary to reproduce the issue.

Thanks!

[helgoboss]

BTW, pre-releases are not meant to be used in live situations.

[SoliDeoGloria2]

Hi! Sorry for the delay. I've been trying to reproduce the issue with some minimal test projects, but I am not able to do it. The failures all happened with moderately heavy projects. Sorry that I opened the issue but cannot give for now an easy recipe to reproduce it. Maybe it is related to the multiple tabs feature of REAPER, which I perceive as prone to create some weird issues in certain scenarios.

Byt the way, you're right regarding the pre-releases, I acknowledge it...