Using 3.4.7970 P
Last week I got a new 1tb SD Card for my Samsung A42. I did a wired sync preview first and then performed a sync via WiFi. I was syncing approximately 34,000 files along with 90 playlists. The sync took 12-14 hours to complete.
Yesterday I added a new album to my library and when I did a sync preview (using the WiFi Sync app) it showed in excess of 33j, 000 files to be copied. The only change made to the library was the addition of 12 tracks. I went ahead with the sync and it took about an hour. Today I added another album (27 tracks) and again did a WiFi sync preview. It again showed in excess of 33,000 files to be copied. I went ahead with the sync and after three hours it was only at 6%, so I aborted it.
Looking at the date/time stamp for some of the files that did sync, it appears as today's date and time. So existing files are being overwritten. As I said at the beginning, nothing has changed in these files, they are already on the SD card, so they should not be syncing again.
Why is it doing this and how can it be prevented? This is a huge waste of time.