Ah, now you’ve gone into a bit more detail I think I know what this may be. 
Do you have Grammarly installed in your browsers?
Actually, let me just check to be thorough:
- I can see comments on mobile (Android/Chrome)
- I can also edit a comment on mobile by tapping the comment to pull up the edit pencil option, and on desktop it appears on hover
- Same as above, but for the bin icon
- My replies are also tallying correctly:
Your screenshot also appears to show the correct numbers? 10 replies = 10 answers, and the comments aren’t included in the count.
What device browser are you using, and do you have any browser extensions that may be interfering?