Thanks for the bug reports! The first two are more communication errors. The perks are working as intended but the descriptions need work. Do you have ideas on how to clarify the wording while keeping them succinct? (Obviously no obligation to respond to that question, it's our job to figure that out, but sometimes it's helpful to hear how a new player would explain something since they just went through the process of learning it)
Could you elaborate on what you mean about the eyes not being visible and being dealt face down? In my mind all cards are dealt face down and when you click on them they flip face up. Eye cards have a special "card back" though. It is certainly possible for close call to flip up an eye if it's adjacent to an enemy.
Hints sometimes duplicate and have since before this update. There's some logic that tries to prevent this but sometimes it fails.