HS 10.13.2. Trying to make QuickTime Player the default app to open .mov and .mp4 files, but I can't make this preference "stick". e.g. Opening "Get Info" for an .mp4 file, I change "Open with:" to QT Player, check "Always Open With", confirm, click "Change All..." in the Info window to make sure, confirm, and that should do it. And it does, until after a restart/reboot or two, then it reverts back to another strange app for its default. Looks like a HS bug. Can anyone confirm?