 off the top of my head the visitors keep re-popping up at the garden everytime you have some other notification: (example I have a full inventory, and after I clear it 2 seconds away I get NEW VISITOR!! despite no one new showing up)

another one is when I'm in the end I have some tracking on the left of my screen for end mobs/skills I guess, but when I pull out my pickaxe to mine end blocks I get the mining HUD on top of the end stats.

the skyblock sidebar on the right has the mayor perks + vice-mayor that make it go below my screen when an event like the pig year is active by how many stuff are written on it.

and last but not least the hearts still show up on top of the HP bar instead of being hidden

(the not being able to click on chest while holding a pick is a global issue and not a mod one apparently, edited) 