You are right the bugs I thought was a problem of morph are mostly manifest issues. Some are interactions with morph but the problem as Korath said was the other card and not morph.
I can't find where Korath said more about the bug of being able to see the AI's face down card. That in right click menu we shouldn't be able to see AI's face down creatures on "original type" submenu or on big card.
These should only be working when debug menu is on for testing issues.
EDIT - You may want to see the article in this link posted by Korath about morph rules problems although back from 2014 so some things may have changed since then:
https://blogs.magicjudges.org/articles/ ... -up-world/