Has anyone else had this trouble the "Molding Imp" card can not be placed and the cursor also seems to disappear when this card is played.

Which faction's card?

Ok, I had no such problem playing the MolTing Imp. It worked as intended.

I have had this same error on 5vcards now where when picked to be put on a spot on the train the cursor disappears and the game freezes up. No worries though got a refund from gog I due wishes the dev's had cared enough to get back to me but whatever. I will gladly admit when the game worked it was fun but way to buggy for me.