Time Machine has taken over my entire external hard drive
I'm running 11.5.2, latest software on all devices. But ever since the latest update to Big Sur, time machine has taken over my entire external hard drive that I back things up to. Before the latest update to 11.5.2 I used to be able to backup my Quickbooks business data to the same external hard drive, now I can't. I can't even drag and drop a JPG into it. I called Apple tech support and tried everything they knew of to no avail. So I guess now I have to backup my business data to a flash drive. All this happened after the latest update. My external drive is a Lacie D2 Quadra V3 2TB storage. I always backed up my Quickbooks data to it before this last update. First I went to Quickbooks tech support, not their issue, then I went to Lacie, works fine, not their issue, went to Apple, no answer, use a flash drive to back up your data. Wow.
[Re-Titled by Moderator]