How to reproduce it:
1.open a scene/text in composition mode.
2. navigate to a text before or after using keyboard shortcut
3. return to origianl scene
4. highlight text and try to italicize. Nothing happens.
To fix it, I have to exit and then re-enter composition mode.
Tested this out, and it seems to be the same for me as well – seems to be exclusive to Composition Mode, as it works fine in the regular editor, and does indeed seem to fix itself on ‘rebooting’ Comp Mode.
I am still unable to replicate this. Can you please send a sample project showing the issue to email@example.com with a link to this thread? Perhaps there is something specific in your setup that is causing the problem.