I wasn’t sure if this bug had been mentioned yet. I was doing some multi-level building recently, and I noticed this was happening to the manual scaffolding:
Strange gaps were showing up in the ladder. I wasn’t sure why this was happening now, since the last few versions allowed this fine. I then realized that this gap is likely due to workers constructing the ladder from both ends–workers originally could only build them from the base.
What I guess is occurring is a bug in the script, where the building process of one worker confuses the other, signifying their work is done. However, oftentimes this gap won’t be finished by either of the workers.
My apologies if someone else had already mentioned this!