Severe crashing using Note Expression

Here are some of the many, many crashes that have occurred whilst editing Note Expression data.
Cubase 10.5.3 Windows 10 Home.
Cubase 10.5.30.365 64bit 2023.3.27 15.18.54.811.dmp (1.1 MB)
Cubase 10.5.30.365 64bit 2023.3.27 14.55.32.397.dmp (1.1 MB)
Cubase 10.5.30.365 64bit 2023.3.26 11.38.06.515.dmp (1.1 MB)
Cubase 10.5.30.365 64bit 2023.3.26 11.35.13.684.dmp (1.2 MB)
Cubase 10.5.30.365 64bit 2023.3.24 16.05.25.005.dmp (1.1 MB)

Hi,

The DMP files don’t point to anything specific.

I would try to rename (delete) Cubase preferences folder. Cubase Preferences folders are:
Mac: ~/Library/Preferences/Cubase X
Win: %appData% Steinberg/Cubase X_64

Try to reinstall Cubase 10.5.30 and make sure you are installing it as administrator, please.