I'm pretty sure it only happens when you have a side dock defined and visible...
I would export the project resources, but the Export Project resources popup has locked up the whole designer when I pressed "Export" 
I'll grab the raw json...
Edit: Oh wait, it came good after about 5mins...
BrokenAlignment.zip (31.3 KB)
This is the left side dock that is configured on both views:
Edit2:
I got the simpler view to die as well by just adding more pipes. I'll upload the new version in 5mins once the save dialogue finally opens (I suspect that the file dialogue is trying to connect to some remote network folder and it can't, and is timing out after an absurdly long time - literally ~4mins after roughly timing it).... but I just added these pipes
BrokenAlignmentSimpleView.zip (9.0 KB)