Originally Posted by DuckieTigger
Go back to the first post and install the newest JBPatch for the KT. Version 3 is the up to date version.
Update: Sorry for the short answer. What I meant to say is, it would really help if you try the latest version and see if your problem is fixed. 3.0.0 adds no functionality, that is correct. But it still had changes under the hood. A minor change under the hood can have a major impact. If you want to help find the problem, then see if the books you had problems with work under 3.0.0 - if they don't, then there IS something wrong with JBPatch and it should be fixed.
Cant right now try it.
I just wanted point only, that with different books your reader may act differently.