Pet in Crystal Caverns Broken Bridge room

[3d_glasses]

Im not sure if this is correct location for this post.

There is issue with pets in Crystal Caverns broken bridge room. Pet disappears when in the water near bridge and does not reappear without minute or so of trying different commands. When reappearing usually fall through ceiling. Velium crawlers path kind of strangely from the water and will also randomly disappear then fall through ceiling.