Error launching BP-Only project to device or packaging on Windows

I keep getting:
ERROR: System.IO.DirectoryNotFoundException: Could not find a part of the path ‘…XXX/’.

Are there known issues launching/packaging BP-Only project on 4.20?

This happens even on a brand new 4.20 ios project on 2 different machines.

Has anybody launched a BP-Only project to ios device on Windows with 4.20.2?


So same BP-Only project launches direct to device on mac successfully.

Looks like there is a bug in 4.20 with launching BP-Only projects direct to device.