Sorry to hear about the conflict with PocketTube -- I haven't tested that combination. The BlockTube extension has a similar commenter blocker so maybe try that one instead of this one?

I wasn't able to replicate the problem with sorting. I tested using the latest version with last month's bug fixes (0.8.2). But also, Google might be showing you and me different layouts because they are constantly testing interface changes. So maybe it will break for me in the future.