So I am on lam land now, had a main ready today who was a cleric 18/monk 2/epic 5, with maxed out destinies.
Checked a trainer had full access to the 2 cleric trees and the 3 monk trees.
I then used a lesser heart +5 to swap in 4 more monk levels and 1 ranger level so she is now cleric 12/monk 6/ranger 1.
After the reincarnate process I try to set her enhancements, and I have access to only cleric trees and ranger trees, with no access to monk trees at all. She has had access to elf tree entire time.
Logged out and back in still no access. I have bug reported.