Your topic may be long, but, it is very vague. 90% of the topic just says, “it doesn’t work and I don’t know why”.
So basically this is your whole topic:
The video doesn’t make sense, considering the fact that you said tweenservice doesn’t work on the weld. But, it looks fine to me?
After further review(about 10 minutes, which most helpers on the forum take about 1 - 2 minutes, and if they don’t get it, they leave), you just had to use WeldConstraints, not Welds.