I set it on macOS Mojave and small backups forks fine (I guess up to 50 MB), but bigger regularly hangs. Until now, somehow I did all with up to 100 MB, but one site of (All in one migration size is 300 MB) not less than 20 times hanged on up to 95%. Is it issue of the some size limitation, issue related to persistent annoying password requests by AMPPS (requests comes also in the middle of the backup) or something else? BTW, website works just fine and can be restored with AIO Migration without issues.