Some surfaces of some props don't collide correctly (GMOD)

[400Ferrets]

cafeteria_table001a is one example I could find (in the gmod Construction Props menu, bottom right) See attached video, player has no friction on top of table, and sort-of clips up and down on it (server-client disagreement?) It does not seem to effect props placed on the same table, only the player. Only the top of the prop has this issue in this scenario.

https://user-images.githubusercontent.com/68585283/232331292-980ba6dd-a9b5-4e33-8530-ed466f17714a.mp4

[YUCLing]

It seems it's related to #3