It doesn't seem to work, it connects but then it wasn't really connected since it gets left behind, as if it was static.

I got lots of mod, is there any specific things from other mods that affect this?

I tried all Vehicles including Vanilla ones.

Correction, Just disabled all my other mods except this mod, and it turns out after disconnecting it via "Shift-V" and then connect it back via "Shift-G", it won't work anymore after that.

This can be a solid mod, like a Travelling Caravan like or Mobile Base Mover, I'd say this isn't just a toy but a unique and game changing mod. CAN'T WAIT FOR THE FIX.

Seems to work fine when I tested it. Though the auto-selection of what should be the head and what should be the tail is still wonky.