WeldConstraints locally offset when attaching parts to characters

[GoldyyDev (Goldy)]

While working on an armor system where I set part CFrames and use WeldConstraints to attach armor pieces to blocky characters, I noticed desync between the client and the server in the form of weld offsets.

Client

Server

Notice how the belt is offset and is clipping into the character on the client.
There are no scripts offsetting these parts.

I have tested this in a blank baseplate with similar results to a lesser degree.

This example shows that this affects parts welded to more than just limbs (note the offset on the goggles).
Server, client

Currently I’ll just have to use plain old welds.

weldoffsets.rbxl (198.9 KB) Please do not steal this code.
Please notice how the belt gets offset into the character.

Perhaps this is related to this issue? I’m not sure since this seems to be local offset only.

Physics simulate before Weld Constraints can take effect, causing random offsets

While creating a weld script for a friends project, I’ve had a script run through a list of objects inside of a ship and create a weld between neighbouring parts. This is the outcome of said module with all the parts anchored which is expected. [image] as you can see the welds have all be connected but none of them are active because the parts are anchored. [image] Now adding an extra function to set the Anchored value to false for all the parts except a core part after they have been weld…