Very strange custom tag problem

[sleepless]

For all the tracks on 1 of my albums, MB automatically writes a coded value for the Custom 9 tags, which reads something like 00000EDA 00000EDA 00000EDA 00000EDA 00000EDA 00000EDA 00000EDA 00000EDA 00000EDA 00000EDA. In the tag settings, it is set to "save to MB database only".

-no matter what I do I can't get the value of this tag to to change or delete the value.
-I have tried creating id3 tags for this custom tag (TXXX/CUSTOM 9) and deleting them in the tag inspector, but they still reappear.
-I can successfully delete/edit the id3 tags using MP3Tag, however MB just auto rewrites the tag value again as soon as ANY changes are made to tags for those tracks.
- I have tried removing the tracks completely and re-importing them but MB does the same thing again.

All the other tags for these tracks seem to be working fine ( I can delete them or change their values). This custom tag works fine (empty) with all other tracks in my library. Thoughts?

[redwing]

That value looks like Soundcheck tag value. Do you have any ASR presets auto-applied?

[sleepless]

If you mean the equalizer preset in the settings tab in the tag editor, then no. Is there another place I should be looking? Why would it only be affecting this album? I've also noticed that 2 tags are automatically being created for these tracks:

REPLAYGAIN_TRACK_GAIN
REPLAYGAIN_TRACK_PEAK

MB is creating these automatically. They weren't there when I imported the album. I can delete them, but MB just recreates them again immediately.

[redwing]

Check if that's related to this feature:

http://getmusicbee.com/forum/index.php?topic=9600.0

[sleepless]

I don't see why/how MB would be auto-writing these tags. I have never used this feature before. The thread you linked describes a process I have never used and have no understanding of. Also, I just imported this album. It has never been in itunes or on my ipod.

[redwing]

OK. Then do you have Additional Tagging Tools plugin enabled? If so, disable it and restart MB. And then see if the problem persists.

[sleepless]

Yep, problem stayed.  I decided to completely strip the tracks of all tags (using Mp3Tag), and re-write them all. After importing them, the same thing happened. However, I then renamed the files and re-imported. This time it worked!  I have no idea why the file name would make a difference. It's like MB "remembered" the old tags no matter how many times I removed them, until I re-imported them from a different location. Anyway, it's working now, but I think I'll backup the MB database just to be safe after this odd behavior. Thanks for your input.