Tried to make a screenshot but the post was way to confusing being a lemmy screenshot on lemmy so il attempt to describe the issue.
Basically the block user option now overlaps with the Android navigation bar right at the bottom of the screen and can’t be clicked.
I made two small changes in v251 hopefully it helps: I removed the ‘Open’ option (I don’t think it was really used) and added the block options to Comment Cards.