[Designer 1.10.0 crashes during app startup]

53 minutes ago, Sean P said:

Also if you could go to the following location and Compress the 'Affinity Designer' folder please and then move the one out of the Containers Folder to your desktop and then try starting the application. 
 ~/Library/Containers/

Does this allow the application to start? If so could you please attach the ZIP please, if that still doesn't work, then copy the folder back (overwriting any existing files). Its worth noting that this folder will contain any custom assets and brushes etc that you may have created so please do try to keep a backup before deleting anything first!
 

That actually did the trick, thanks! I did have some presets, but not so much as to keep them, so I have no problem with replacing them.

[Designer 1.10.0 crashes during app startup]

I'm not entirely sure what is happening. After an automatic App Store update to the new versions of Affinity, Designer seems to be the only one with crashing issues every time I try to start the app up.

Photo and Publisher are fine. Already tried a delete/redownload of the apps, as well as a restart of my Mac.

Mac Pro (late 2013)
Big Sur (11.5.1)
3.7 GHz Quad-Core Intel Xeon E5
12 GB RAM
AMD FirePro D300 2 GB