Trains are being weird

[Yoko]

one of my trains ran out of gas, i towed it just fine once, now every time i try to couple the two trains they wont connect and one stops working so when i use hte other both drive while not being connected to each other, and even when they are coonnected and get disconnected the both still do the same thing sometimes it happens with the carts too

[Yoko]

LIKE its so busted so often, finally went SCREW IT ill just NOT use the other train to tow it and go back on my save, now my train set its a SKIP cart+Flatbed with crates+Train
train and flat bed drives (ALL CONNECTED) but the skip drives in the opposite direction, like what the hell is going on?!

[Yoko]

very very stressfull bug tired to the point of crying with how fcked it is, even after giving up the second i uncouple the crate cart its still ♥♥♥♥♥♥♥ bugged

[Oskutin]

Is this playtest save, fresh save or pre-mines save? Can you upload your save to github so we can investigate.