New Songs wont scan

[nimnul]

Running latest Subsonic (premium) on a Win10 PC, files stored on a Netgear NAS, system has been running for years. As of about one week Sub stopped adding new songs. Scan is every day at 3AM. Log says:
Bla bla bla and
[2017-08-24 08:22:26,009] INFO MediaScannerService - Scanned media library with 105408 entries.
[2017-08-24 08:22:26,010] INFO MediaScannerService - Marking non-present files.
[2017-08-24 08:22:31,140] INFO MediaScannerService - Marking non-present artists.
[2017-08-24 08:22:31,158] INFO MediaScannerService - Marking non-present albums.
[2017-08-24 08:22:31,293] INFO MediaScannerService - Completed media library scan.
[2017-08-24 08:22:31,712] INFO PlaylistService - Starting playlist import.
[2017-08-24 08:22:31,712] INFO PlaylistService - Completed playlist import.
[2017-08-24 09:11:57,269] INFO NetworkService - Successfully forwarding port 4040.
[2017-08-24 10:11:57,313] INFO NetworkService - Successfully forwarding port 4040.
[2017-08-24 11:11:57,350] INFO NetworkService - Successfully forwarding port 4040.

Even if I force a new scan, as this one above, newer entries are not added

[uberdork]

Same problem here. All the sudden my new music is a toss up on whether or not it's recognized. The issue is discussed a bit in this thread as well: viewtopic.php?f=2&t=17489

No good fix for it yet that I'm aware of (at least not a convenient fix).