Can you play those files in MC26 if you double click them in explorer
I seriously starting to run out of ideas
I have a few updates to report. I tried to play a file when double-clicking it in Explorer. I had all MCs closed to see what would happen. It did indeed play, opening MC26, although the track did not show up in the list.
I then noticed that the old Avalon files that I had restored last night from the recycle bin, putting them into a new folder, had appeared in MC26. Hmm, interesting...a clue! I then created a separate folder for one of the Metallica discs that wasn't appearing last night, and transferred the files to it. Nothing happened on import of a single folder. I then tried deleting the folder and restoring it. Nothing happened, but when I did a single folder import it did show up. Yay, progress!
Then, I deleted the entire "Various Artists" folder, restored it and then ran a folder import in MC26. Suddenly it found 2,273 "new" files. Needless to say, I was extremely happy to know it was looking as though I wasn't going to have to re-rip 8,000+ files.
I then closed MC26, opened MC25 and triggered an auto-import the D:\Music folder. Nothing happened. I then tried a single folder import on the Metallica disc. Nothing happened. Did the same with the Various Artists folder, with the same result.
I still have no idea why this is happening. The only things that I can say for certain is that it exclusively involves files ripped with dBpoweramp 14.2, and that the "fix" of deleting the files and restoring them only works with MC26 and not MC25.
So, my next step will be to methodically delete all the files and restore them and then run an import in MC26. I'll report back if I have any discrepancy in the file count once I've completed that. While I would love to know why the files still aren't appearing in MC25 when they do in MC26, and would welcome any theories, I will be concentrating on getting MC26 up to speed.