Some letters in terminal are not seen in some cases.

[rockyzhz]

Describe the problem:
In some cases, some letters in commandline are not seen.
For example, in a new powershell window, input a word : exit
the end 3 letters 'xit' are not seen.

I've tried to change the color scheme and theme, no changes.

In other cases, for example, ssh to a debian system. Still input exit in the commandline,
Some letters would disappear in some unknown rules.

In upper case, I typed 'exitexi', until I typed another letter 't' (any other letter would result in the same situation.),
all the letters shown as the following. I don't know what's wrong with it.
The debian system is normal, because I've ssh to it many times with MobaXterm.

I use tabby portable version (tabby-1.0.200-portable-x64.zip) on Win 11.
To Reproduce:
[Steps to reproduce the behavior]

[Clem-Fern]

Hi @rockyzhz

Duplicated of #8884.
The current workaround is to switch to xterm (canvas) in Settings > Terminal > Rendering > Frontend.