I get this error, while it works on a hot node:
{"result":null,"error":{"code":-707,"message":"Wrong signature; Input: 0, txid: 11449f7aafdef8dd58e83d9840e4dacd666053336ba68e1072d9cc71fe3d90de, vout: 0"},"id":"multichain-client"}
I figured its because if i'm using a different node to the one watching the address (cold daemon for example), I have to supply the gettxout info.
Maybe you could please update the off-chain atomic exchange tutorial (or error messages), mentioning this scenario as I just wasted ages trying to debug it.
Thanks