Is the delete/rewind options broken for anyone else?

I’m not just saying I’m struggling to use them, they’re not working entirely. Messages are being picked and chosen to be deleted and it’s honestly just annoying. I know it just takes time to get used to a new feature but it would help if it a) worked and b) was preferable to the old feature, which was a combination of both and actually showed you what messages were getting deleted so you could confirm