What is the glitch exactly? Is it when you're trying to unzip?
These glitches are a form of file corruptions.
I found a numbers of these in your Sora Shiina releases too.
Are these glitches from the original sources? If it is, that's really bad and needed to be feedback.
As far as I know, these corruptions can be formed from concurrent heavy disk activities like, downloading and doing large file transfers at the same time, causing CRC errors. Forcing unzip/unrar of them will show similar corruptions somewhere in the files. In term of video file(mp4), it's will download as per normal, no errors shown.
This is one reason I always encourage rar-splits for large file instead of using .001, .002(basically just splitting bits), as there's some form of corruption check.