MacOS may lose data on APFS-formatted disk images
I upgraded my hackintosh to High Sierra with APFS. The next day, I accidentally switched off the machine while it was in the _process_ of shutting down (the screen had gone blank, but casing still emitting lights).Next time I turned it on, I couldn't get past login screen (giving me forever beach ball).I put the ssd inside my old MBP as slave to recover data.The ssd was corrupted, most data gone, as in shown in Finder but couldn't be copied.I googled for solutions, but it seems I'm the first to experience this.