The whole dungeon has no enemies or NPCs, but looks like there should be some. It has loot and two sections so it feels cheap to pick it all up for free with no danger.
In the dungeon Nebulud, there is a locked-up slave Cheeya. If you click the dialog entry "go free", you get the message "You must find the key to these bracers before I can be freed" even if the Nebulud Slave Key is in your inventory
In the "And Ghosts, Too" quest, after I tell Aurelia Draconis we're going to Dondril and she agrees and the message "Aurelia Draconis is now following you" appears, the quest breaks. Aurelia does not follow you, and re-initiating dialogue goes back to the previous entry "Well what did that spirit fellow have to say"
In the quest The Missing Brother, upon returning to Rulvam Helseri to tell him that you found his brother's corpse, clicking [Lie] has the sequence repeat itself until you pick another response option. It's possible that this is intentional, and he's meant to insist that you tell him where you found his brother. This is easily interpereted as a glitch though. If it is intentional, I'd suggest adding a context clue of sorts. (Rulvam interupts you mid-sentence. -- "I don't believe you. Where did you find him?")
The current main bridge into Bodrem uses a mix of shack poles and cavern platforms across a rock arch, the combinded reference count for this is 90 objects, meanwhile a bridge using Redoran pieces would only need 6 objects (9 adding stairs/pylons at the lower end). Narrativly a Redoran bridge would also make more sense due to Bodrems age, being close to a millenia old.
Probably more OpenMW nonsense, but TR_m3_OE_FG_bk_ConJou1 is disabled when you reach this cave in the FG questline; enabling it in console makes it show up in the expected location.
Not sure if this can happen earlier, but during the "Infiltrating the Gang" TG questline in OE, Moranie is in the sewers telling me to give Empress Katariah's deathmask to a pair of palace guards.