Passive Tree changes not saving

I have encountered an issue where if I make changes to my passive tree on a new mercenary class the changes will be reverted if I'm logged out of the game. The issue has occurred 3 times now where I have refunded my different passives only for those refunds to not be saved even after ensuring I saved the changes and double checking after leaving the screen. Can anyone offer a solution?

If your gear requires a certain amount of Str/dex/int and you remove it from the tree, the game wont save it and will snap back to the old tree or to a part of the old tree. Make sure you hit your str/dex/int requirements, before you press OK when refunding the tree.