Hi,
I use 11.0.2 on both my computers. In general everythings working fine but I can't help feel that Apple has done something that affects how music is kept in the cloud.
The main change noted is that when you delete a track from the cloud the pop up no longer asks you if you wish delete from the cloud BUT asks if you want to hide your music. This in itself is not significant as I have never found that the tracks have been removed from their server in any event as when I readd or try to rematch previously uploaded tracks, the tracks appear as uploaded without going through the upload process. Thus suggesting that they have not been removed.
When I think a track should match, I try converting the format from MP3 to AAC or vice versa. For example, I added 24 tracks from same album, 19 matched and 5 uploaded. I converted tracks from MP3 to AAC and succeeded in getting 3 more to match. I thought I'd try convert other 2 tracks to Lossless. I had no success in uploading - match process completed BUT the two tracks showed status as "waiting".
I eventually deleted them and readded the files that were originally uploaded.
I'm sorry I can't offer a solution other than suggest that you don't update your other computer. At least you have a source to get your music into match.
Jim