Welds don't work on a server

I was trying to make a rising platform to hold a map using TweenService. I ran into a problem that models cannot be moved. Then I downloaded the auto welding plugin and used it. On the client everything works fine, but on the server only the platform moves and the card that is attached using welds remains in place and does not move. I would like to note that for Tween Service I use a modular script and call this script in a server script. Aaaand i also didn’t find anything on forum.

Screenshot from client:

Screenshots from server:

Are the welds made in the server side?

idk but I made it in my workspace(viewport) using plugin. I think, it should be server side