[Zone] Forgotten Crypt - unable to enter.

[That1Orange]

WoW Freakz link:
https://www.wow-freakz.com/zone.php?zone=8420&name=forgotten-crypt
https://www.wow-freakz.com/object_finder.php?object=265527&name=collision-wall

Bug description:
Forgotten Crypt is unable to be entered, which to my knowledge, should be able to be entered as of 7.0.3 (first room, Well of the forgotten) with the rest of the crypt open in 7.3.0, however when descending down the stairs, there is an invisible wall, this wall cannot be passed, either while dead, or alive, as such, you cannot get in the first room, however when turning around to leave, there is also an invisible wall, which also prevent you from leaving, so you are trapped between invisible walls, when I did this the 2nd time, I noticed there was 2 invisible walls on the staircase to get out, one behind the other.

Proof:
https://youtu.be/437hiNzxHdA (Sorry for bad quality)