Maybe zoom level gets saved in the project and even though it's a .RPP file, it's actually an INI file format (which could be related to the close ini file hang that I saw in the non-working procmon).
So when it doesn't work maybe it's trying to write the zoom level to the project.rpp (INI) file or something along those lines but I can't be sure and am guessing quite a bit.
I'm still interested if this repros when using my Scenario #2:
https://forum.cockos.com/showpost.ph...1&postcount=14