Why did roblox add this and how to disable this?

[Omnomc]

Roblox added a feature which makes it so parts with cancollide=true cannot go into each other when used with the move tool or in scripts.
Does anyone know how to globally disable this and what this feature is called?

[kexy123]

To disable it, you can do so in the HOME ribbon by turning the mode from Physical to Geometric.

This feature existed a long time ago, so it may be that you accidentally changed this setting before without noticing.

[Omnomc]

Thanks, I fixed it by changing Collisions and Join Surfaces off