are any other plots showing double beds?
Noup, only the bus stop -the most- and the school bus -ocassionally.
The worst issue happens in Abernathy Farm.
Only in here I got the same issue with the "brick house" of other author.
As an anecdote, in Sanctuary, after the school bus house reach lvl3 I enter in the house and only showe 2 beds (one cross in a cross position over the other) when open the workshop hud.
At this point its looks a random behavoir trigger by the auto-uppgrades with this house.
In the case of bus stop show more consistence the bug.
Even afer a clean of duble beds, in Sanctuary and A. Farm I must obliged to refresh plot by plot, from time to time, to reach the good bed numbers. I doubt it was related to your addon. But I only a user bothering the real creators :P
, my conclusions maybe so far from the truth
Any help I can do for you, only tell me.
I must say I enjoy very much your mod, your houses, shops an so. Trust me I thikn you're one of the most creatives authors that, in combination with SS mod have brought back to live the FO4.
Imao, Sim Settlements mark a line, an "before and after" in the life of the FO4.