@tkircher I just merged #4765 which may address this.

At least with the crash, anyway.

I'll check it out and report back. Thanks!

Still crashes with slic3r-1.3.1-dev-5f68ce4-osx.dmg.

Ah, that's probably because you are trying to load a Prusa3d config bundle and the config loader got more strict about what it accepts (and we hadn't done the error handling to adapt).

I am not experienced enough in Perl to handle that error.
I tried to wrap the call in an eval {} but it still threw the exception and it apparently wasn't caught.

Ah, that's probably because you are trying to load a Prusa3d config bundle and the config loader got more strict about what it accepts (and we hadn't done the error handling to adapt).

Even if I'm trying to load a PNG accidentally, the parser either accepts or rejects. Crashing is always a bug. ;)