We just enabled a change to Model:MoveTo that removes some hidden, undocumented, and sometimes problematic behavior.
Previously, this function would internally call JoinToOutsiders after moving your model, creating joint instances on compatible SurfaceTypes. Whether this happened or not could depend on whether it was called in Studio or being played in a published place.
We have removed this joining behavior so that MoveTo does only what it says: move.
If you were relying on this behavior (intentionally or unintentionally), you can simply call Model:JoinToOutsiders right after you call MoveTo and reproduce the old behavior.
Please reply here if you run into any issues!