This is a stumper. Either that, or I found the secret to time travel.

I created a new ESP. Its purpose is to add doors in one basemant that lead to all of the player owned homes. A door is installed in each home leading to this basemant. Sounds basic. Was easy to do.

However, with this new esp active, if I fast travel anywhere the time does not change. The game clock keeps on ticking, but no time advancement occurs as a result of the fast travel. Deactivate the esp, and I get the usual time change when I fast travel. Activate it again, no change.

The dependency list is long, as the CommonBasemant.esp depends on my other mods that either add new player homes or remodel existing ones. However, TES4EDIT only shows the added doors to the various cells. Wryte BASH shows nothing weird with it (all dependencies accounted for). There is no script on the door. It is ARdoor02 (an Alyeid ruin door).

So, how does adding 12 of these doors to the 6 interior cells cause the game to stop incrementing the TOD when I fast travel???