In the latest few releases and the current (as of 4-7) beta of Z-Suite for Mac I cannot export sliced models. Every time I try I get the error message “File has failed to save.” I get the same error message when I try to save projects, although in that case the files DO appear and are usable. When I try to export models, though, the process halts and no file is created.
I assumed it might be related to disk permissions, so I added Z-Suite in “Security & Privacy” in “System Preferences” with “Full Disk Access,” (and quite and re-launched the app when prompted), but that had no effect.