Many Albums ending up in [untagged] group

[feeling_zenjp]

Problem Description
I recently tried migrating from Asset to MinimServer and of the 700 or so albums on my NAS, MinimServer dumped about 100 of them into [untagged]. Previously, these all showed up in Asset under the correct Artist and Album.

Background
Knowing the MinimServer is a stickler for standards and consistency, I had a look at a couple albums from the same artist where one album appears in my control point, and the other appears with all the tracks dumped in [untagged]. Looking at the ID3 tags and paying attention to case, both the album that appear correctly and the one that does not contain "Album", "Artist", "Title", and "Track".

I tried deleting the tags and re-applying the tags manually via dbpoweramp but this had no effect.

Finally, to aid in troubelshooting, I cleared the MinimServer log, set it to trace level and set the scan directory to just the artist directory on the NAS containing the two albums for our sample comparison. Although there is a lot of verbose output, I do not specifically see any actual error messages or messages pertaining to missing tags.

Provided Logs
The trace level log of the rescan of just the two albums is attached. For Reference, the album that does appear in the library is "Phantom Limb". The album that does not is, "The Pines".