I initially thought your issue was the formatting and using reverse without meaning to, but @DataSigh’s question probably gets to the issue.
You need the script.Parent
to be a Part, or change the code to reflect that. BaseParts can be moved with Tweenservice, but Models can not.
I tried to remake what I think your intent was here:
TweeningAPartToTwoOtherPartRemake.rbxl (55.8 KB)