Would the path based sub folder organization proposed in Events folder flattens all photos even with a subfolder pattern possibly be a viable alternative to the export mechanic? So for example, having a rule like «store all files of type “raw” that are in the collection “to edit” in a subfolder named “RAWs to edit”»
In general, the export approach is also be possible a possible option, it just feels a bit more like “bending it” into a use case than for the approach above.
This looks like a bug that has been fixed in 1.0.0-rc.20. In case you are not running an older version, from where have you invoked the export collection dialog when this was happening? I couldn’t find anything suspicious in the source code.
I had not enough time to play with this. But I think I just failed at providing the correct parameters for the Apps I added (manually), e.g. DXO.
I’ve added DxO PureRAW 5 and FilmPack 7 to the automatically recognized editors for the next release. PhotoLab was already in the list of recognized editors, but wasn’t detected correctly on macOS, which will also be fixed. For some reason, FilmPack just crashed for me but at least the others work correctly now.