Player teleporting when falling to a part / jumping onto a part?

[dzhann757 (Apollo)]

I’ve never heard of PrismaticConstraints. What is that and what does it do?

[Scottifly]

Check the documentation:
Prismatic | Documentation - Roblox Creator Hub
PrismaticConstraint | Documentation - Roblox Creator Hub

Mechanical constraints | Documentation - Roblox Creator Hub