Could you check changes in buffer management algorithms, please, I think ?
I have used till now b. 15203 because all newer I have checked create problem:
any time hard disk read cause music break about 1 sec or less but I can hear that and that disturbing. In 15203 it isn't.
on bigger files (flac) about 20-40Mb hard disk reads are enormously frequent and break on each minimum 1 sec long.
I have copied always newer version of RB to disk, start play same music files and I should return every time to b.15203. Maybe it has been happened after this build but I hadn't loaded every build during this time - only maybe 5 of them.
Last I have checked was 15838. Definitely it was in 15550.
I don't know how to create bug report.
Thanx in advance