Port Telvannis riverstrider port has a main entry door that does not open/animate when activated, and does not show flavor text indicating whether this is intentional. I'm not sure if it's a Tamriel_Data thing or a Mainland thing since it seems to be a script issue.

Report time: 2021.01.26 16:05:37 UTC
Content file: TR_Mainland.esm
RefNum: 284643
RefID: ex_t_door_stone_large
Memory address: 00000241AA96AC90
Cell: Port Telvannis
Grid: 41 16
Coordinates: 342539 134173 383.521
Model: meshes\d\Ex_T_door_stone_large.nif

Windows 10, latest stable
OpenMW latest nightly
Intel/AMD latest drivers
Load order:
(Bethesda Steam GOTY base)
Patch for Purists
Tamriel_Data
TR_Mainland
Cyrodiil_Main
Sky_Main
(Bethesda official plugins)
Expansion Delay
TR_Preview
TR_Travels
TR_Mainland_2002_hotfix
Lake Fjalding Anti-Suck
TR_Factions
Join All Houses
Join All Vampire Clans
Vampire_Concealment
St. Delyn Waist North-Two Player Home
multipatch