I updated to the latest (5.3.0) from 5.0.9 and now I am getting the error below. Issue #1 seems to have been introduced on version 5.2.1. Issue number #2 was also occurring on 5.0.9 but the error only shows during debugging so it was ignored.
#1 Bunifu Button (after clicking which closes form): Cannot access a disposed object.
#2 CustomDataGrid (during form load): Object reference not set to an instance of an object.
I tried adding the call stack to the post but word fence blocked it. Let me know if you need them.