Beam grouping options too small on "Create time signature" dialog / Musescore 4.1

Hello, when I create a new Time Signature, the beam grouping options are extremely small, and I can't change them at all due to the limited size.

Using MS 4.1.1 on Linux Ubuntu 22.04 KDE Plasma. Everything else seems to be okay in terms of size, but this dialog box is impossible to use, which greatly affects the usability of the software - as we have to create several new time signatures here and there.

Here's a demonstrative image:

Thank you!