Follow-up: possible Workshop Framework Max Threads issue / workaround
I was able to narrow this down further and found a workaround that appears to resolve the City Plan construction problem on my setup.
Environment:
Fallout 4 1.11.240.0.1
F4SE 0.7.9
Sim Settlements 2 All Chapters 3.7.0
Workshop Framework 2.6.0
The original problem was that some City Plans would not finish building correctly. It was most noticeable at larger settlements requiring a lot of initial scrapping and construction.
Finch Farm was the most consistently reproducible example. During City Plan construction:
- Most vanilla crops and fences would scrap, but several would remain even though the plan clearly expected them removed.
- Construction would begin while those objects were still present.
- On heavier plans, some floors, walls, stairs, or other objects could also fail to appear.
- Cinematic Mode would then remain stuck indefinitely and the City Plan would never reach normal finalization.
- The Settlement Management Terminal completion/registration popup would not appear.
I reproduced the problem with both a third-party City Plan and the standard SS2/built-in Finch Farm plan, so it does not appear to be specific to the third-party plan.
I then reloaded the same pre-build Finch Farm save and changed
only Workshop Framework → Max Threads from 50 to 30.
With Max Threads at 30, the same built-in Finch Farm City Plan completed normally on the first attempt:
- All crops, fences, and other expected objects were properly scrapped.
- Construction completed normally.
- Cinematic Mode exited automatically.
- After another minute or two, the Settlement Management Terminal finalization popup appeared normally.
Construction was somewhat slower at 30 threads, which was expected, but only by a few minutes and it completed correctly.
So at least on my setup, reducing
Max Threads from 50 to 30 appears to be an effective workaround. I do not know whether the underlying problem is excessive concurrent workload, a dropped/interrupted worker job, or something else in the threading system, so I would not call this a confirmed root cause yet.
The pattern I observed is that settlements requiring more scrapping and/or more object placement seemed much more likely to fail, while smaller/lightweight settlements could complete normally at 50 threads.
This may be worth investigating in Workshop Framework 2.6.0 / SS2 3.7.0. In the meantime, users seeing incomplete City Plan scrapping, incomplete construction, or City Plans hanging indefinitely may want to try lowering Workshop Framework's
Max Threads setting and retesting from a clean pre-City-Plan save.
