Mariusz Lasota

I have tried to reproduce this but I can't. The keyboard actions work for me working exactly as you have demonstrated.  I think you need to look at other things such as how your keyboard shortcuts are set up perhaps, or check any external software you might be using that could impact on the use of keyboard controls.

I have the same issue with Mariusz after updating to Studio 2021 but in a different place. If you are in the project settings (possibly even in the project template settings), just easier to show:

And you press Alt+U, then the Use menu opens but you can't use the arrow keys to e.g. select DeepL or any of the other options. You have to use the mouse. I noticed this as a result of my autohotkey script that I run for all new projects to add DeepL. Since I've reverted back to TS 2019, it works again; therefore, I don't think it's a computer-related problem.

Alt+U also affected here:

I have the same issue with Mariusz after updating to Studio 2021 but in a different place. If you are in the project settings (possibly even in the project template settings), just easier to show:

And you press Alt+U, then the Use menu opens but you can't use the arrow keys to e.g. select DeepL or any of the other options. You have to use the mouse. I noticed this as a result of my autohotkey script that I run for all new projects to add DeepL. Since I've reverted back to TS 2019, it works again; therefore, I don't think it's a computer-related problem.

Alt+U also affected here:

Michael Schroeder

Different problem.  For you I think you need to use the tab key first because the navigation pane is active and not the TM pane.  At least that works for me.

Definitely changed behaviour as this tab wasn't needed in 2019, but I think it's a different problem.

Thanks, Paul. I tested again since the latest update from this morning and the behavior no longer occurs. It seems to be working as in Studio 2019 again.