Thanks for the prompt update and the detailed answer. Really appreciated you looking into the issue for us.
So we've just updated our CMS to the latest build version along with all the active plugins. But during our latest testing, the problem is still happening when it comes to deleting. This is really baffling as the release note specifically mentioned the issue has been addressed.
We will advise our client to use the 'quick fix' method that you suggested. But for a more long-term solution, do you know what's the best course of action here? Should we open a ticket in the OctoberCMS repo instead?
Look forward to hearing from you.