Thanks for your advice and help. I’ll give the restore from last backup before Sonoma a shot and pray it works when I backup those files. Regarding contacting QBDT Mac support to verify my 2019 file data before upgrade.. QBDT support won't help me verify because I’m using 2019 version - I was told QB’s cannot give live IT help to me and can only send me links w/ info to read (which I appreciate) but I don’t want to upgrade and then find out that my files won’t backup on a new costly version that I’ve purchased.