Gap in the lower prison a1

Near the entrance to the upper prison in act 1, I saw this gap, hopefully this bug report helps any.

Here is a screenshot of it and the number:

164,447,176



here is a link if it didn't work:
https://imgur.com/a/viY0Zrl

Hopefully the screenshot works.

This is my first bug report that I can remember, so, if it is missing information, or, I posted it wrong please let me know and I'm sorry.

I was playing on sanctum ruthless ssf hc