When setting up a train the minecart connected at the rear end of a carriage is not sticking to the block and is instead flipping the connection into strange angles that are nowhere near any tracks.

Attached is a video showing how my trains are angling themselves.
https://user-images.githubusercontent.com/60585708/103449357-1d4c9000-4c9f-11eb-88f0-5745cd6c304b.mp4

The issue now is that I'm running this in the Direwolf20 modpack. Which means the Direwolf20 Modpack can't have trains running in it, so that might have to be fixed before Direwolf20 decides he wants a train in his current playthrough of his own modpack

Try uninstalling The One Probe

Yeah that fixed it. I can only assume it is for some reason that I won't even begin to fathom. Thank you.

This was addressed in 0.3c, please re-open if this is still an issue.