Crash when interacting with time signature properties after selecting via keyboard

Issue type

Crash

Steps to reproduce

1. Open a score
2. Press the "right" key on the keyboard
3. Press "Alt" + "Left" to select the Time Siganture
4. In the Properties Panel click on "time signature properties"
5. See no beaming options
6. Click in the empty space in the 'Beam groups' box
7. Crash

The crash should be fixed, and the beaming preview windows should appear.

MuseScore Version

OS: macOS 14.1, Arch.: x86_64, MuseScore version (64-bit): 4.2.1-240230937, revision: github-musescore-musescore-d757433

Original issue

Issue type

UI bug (incorrect info or interface appearance)

Bug description

If you select the time signature using the keyboard and open "Time signature properties...", no beaming options are displayed.
The interface even freezes when you click on OK.

Steps to reproduce

1. Open a score
2. Press the "right" key on the keyboard
3. Press "Alt" + "Left" to select the Time Siganture
4. In the Properties Panel click on "time signature properties"
5. See no beaming options

Screenshots/Screen recordings

No response

MuseScore Version

OS: Windows 10 Version 2009 or later, Arch.: x86_64, MuseScore version (64-bit): 4.2.1-240230937, revision: github-musescore-musescore-d757433

Regression

I don't know

Operating system

Windows 11

Additional context

If you have a Keyboard Shortcut for "time siganture properties" this also does not work.
If you click the time signature with the mouse all things are right.