Assembly2 is an external module that is not part of official FreeCAD. Its development has stopped because its author abandoned the project, and the person who took it up after him died last September (see announcement at the top). Nobody else claimed it. Therefore it is not currently fully compatible with v0.17.
I quoted your edit, thinking you were mentioning another way to get the bug, but without using Assembly2.
I hadn't realized Assy2 was orphaned. Nevertheless, this is a thing that worked properly up until this latest daily. Something happened between 13509 and the previous that caused it.
Btw, what, then, is the correct way to handle assembly in 0.17? I thought I had this grokked.
alberich wrote: ↑Sat Apr 07, 2018 3:39 pm
I hadn't realized Assy2 was orphaned. Nevertheless, this is a thing that worked properly up until this latest daily.
Yes this part is usually a bit exaggerated. That is Assembly 2 workbench is known to work in both FreeCAD 0.16 and FreeCAD 0.17 (Py2/Qt4) just fine.
alberich wrote: ↑Mon Apr 09, 2018 1:38 pm
and the problem is gone.