It was the automatic updater. Siteground support says they have disabled the updater for the entire site but asked me to let them know if it happens again.
Hopefully this will hold.
Again, thank you to everyone for your help.
It was the automatic updater. Siteground support says they have disabled the updater for the entire site but asked me to let them know if it happens again.
Hopefully this will hold.
Again, thank you to everyone for your help.