@grazcoin: When trying to do a payment after I accepted an offer I got "Transaction error" after hitting send, when in fact the transaction went through. I tried it two more times and the last one showed Transaction sent Check transaction: https://blockchain.info/tx/a4197db8c2c9a2d9b1f9985f6b7a5bd0595a82a2533672c6b276971df1df4c60 , but actually all 3 transactions went through.