If the Affinity apps are crashing when typing into the Font selection box please uninstall the following updates dependant on your version of Windows:
Windows 11: KB5017264, KB5017267, KB5017271, KB5017859, KB5018341, KB5018546, KB5018859, KB5020695, KB5020617 Windows 10: KB5013887, KB5017262, KB5017266, KB5017858, KB5018329, KB5018543, KB5018544, KB5018545, KB5020613
Some users have also reported crashes/issues when placing images, updating resources, adding pages, amending table columns and converting colour profiles. If you're suddenly experiencing crashes when performing actions which worked previously it is also recommended that these updates be uninstalled.
If you're unsure on how to uninstall these updates, please follow the below:
Press the Windows Key + R and enter 'Control Panel'
Go to 'Uninstall a program'
Select 'View Installed updates'
Find the associated KB number, right click and select 'Uninstall'
Restart your PC
On Windows 11 you may need to press the Windows Key and search for 'Uninstall Updates'. You will then be able to uninstall the relevant update.
This update can then be hidden to prevent it being installed with future updates by following the guide in the link below.
https://pureinfotech.com/show-hide-updates-windows-11/