Hi all,
please try the following workaround to solve the issue. It did the trick for me.
Create a new user with admin privileges in the Users & Groups panel.
Logout and back in as the newly created user.
Start your Affinity application and enter your Affinity ID and Password.
If your license has been activated successfully, you should find three folders within in the new user’s Library > Group Containers Folder that end with:
…com.seriflabs
…com.seriflabs.beta
…com.seriflabs.extensions
Copy all three folders to the same location in the original user’s Library folder to run your Affinity app(s) within your original user account.
Dirk