I'm not sure whether this is everybody's experience but when I switch the measuring system to centimetres when creating a new document the latest beta crashes.
I use a tab key to go to the next field and once tabbed the program crashes.
If I change the dimensions manually (without tabbing) then the program crashes when clicking on the OK button.
tabKey.mov
The app crash, for me, everytime i try to use tab when when creating new document, then placing any number in page width and then using tab to go for page height.
Note: crash too only using click on height after inputting page width.
Crash log attached.
Affinity Designer Beta_2020-11-03-185843_Mac-mini-de-Daniel.crash