This post is huge because at first I thought I was just doing something stupid, and that it would need to be in its own thread. I thought it was something other than a bug in MC9. However, now I think it is probably the latter.
The short description of the problem: Album tags beginning with certain characters (left paren "(" at least) won't appear under the autoalbumartist=[<artistname>] filter, unless the files with those tags are the only ones that meet the autoalbumartist=[<artistname>] criteria.
The incredibly long-winded description of the problem:
The problem: I have two albums from one particular artist (Godsmack). (OK, think of all the jokes you can come up with after hearing the terms "artist" and "Godsmack" mentioned in the same sentence, and we'll pretend we all had a hearty laugh over it.)
One of the albums is named and tagged "(Self Titled)", and the other "Awake". The files from both albums appear correctly under
Media Library/
Audio/
Artist/Album
(That is, with the [media type]=[audio] filter applied)
...yet only the album named "Awake" appears under
Media Library/
Audio/
Artist/Album/
Godsmack
(That is, with the (autoalbumartist=[Godsmack]) ([media type]=[audio]) filter applied)
I won't list all the files here, but they are all similar to this, with only the name and track number varying:
Godsmack - (Self Titled) - 01 - Moon Baby.ape
Godsmack - Awake - 01 - Sick Of Life.ape
I know what you're thinking--IT'S THE "ALBUM ARTIST" FIELD! But no--NONE of the files in question have anything at all under that field. And again, all the "Godsmack..." files are correctly tagged.
If I retag one or more of the Album fields from (Self Titled) to x(Self Titled), or anything similar, the files that have been retagged will appear (while those that are still tagged as (Self Titled) still do not appear).
The same thing happens with some, but not all, other files which have (Self Titled) as the album name. For example,
Alice In Chains - (Self Titled) - 05 - Head Creeps.ape
Alice In Chains - Dirt - 12 - Angry Chair.ape
...behaves just like the "Godsmack..." files, while
Ashanti - (Self Titled) - 10 - VooDoo.ape
...has no problem whatsoever. The difference in this case, however, is that there are no other "Ashanti..." files, other than the "(Self Titled)" ones.
I know that MJ8 didn't have a problem with this, so...