If you talk to Three-Eyes about special job after the final quest of Andothren Thieves Guild, his dialogue is like if you're still looking for the Camonna Tong.
At the deep end of the tunnels of the mine, at the location in the screenshot, when you get into the water and begin to swim, you cant get out without levitation, waterwalk or tcl.
Probably not intentional.
Character is a redguard-man, if height is an issue with these things.
Aanthirin facelift removes the tree in Hlan Oek, near the Morning Sun cornerclub and the governor's manor. After it's merged, either put the tree back or edit the dialogue which mentions it in "Lost but not Forgotten" quest.
The NPC TR_m4_Arv_UvaynGuard3, involved in the Arvud quest https://en.uesp.net/wiki/Tamriel_Rebuilt:The_Visitor_Known_as_Vendel_Oth..., is supposed to run after the player, forcegreet them once and then disappear after cell change, but the current script keeps enabling him over and over for some players, which causes the guard to relentlessly stalk the player.
Data has a range of misc items called "T_Com_Key_XX". Their chief use is to copy them into new objects if you want a key to have a particular look. In special cases you might want generic, non-useable keys to clutter a location - TR has one of those, the daedric ruin Ashinanibibi, where you can find a pile of keys left on the altar. That's fine, because the context makes it clear that this is for worldbuilding purposes.
