A possible rescue that one may not think of if/when panic strikes.
I recently had som wrestling with Cura and a STL that did not behaved. I did a union in a project and quit Shapr on my Mac. Realizing that I just unionized without keeping, I then lost the (in this case no panic, unimportant) project source.
Then a thought was as to recover by; grab one of my iPads and turn of WiFi, open Shapr, duplicate the intact project, then sync. All fine, the source restored.
This could also done backtracking and digging out the file in the system structure as I described in an earlier post. But that had been more complicated and overkill in this instance.
This less needed with the HBPM in most cases, anyhow…
/BK