Looks good.... that error is "normal"... basically telling you it is only partially signed.


This means that the transaction is signed with 2 keys... it doesn't mean they're the CORRECT 2 keys. Double check the "1" addresses that were used in the redeemscript and then make sure you are using the matching private keys.


that must be some huge trnasaction... if you put the TXID into blockchain.info, how big (in bytes) is that transaction?

Also, you can also get the raw transaction by using blockchain.info:
https://blockchain.info/tx/TXID_HERE?format=hex

like this: https://blockchain.info/tx/d3648194d94cbf3501e57b4a5f81d0759cc40ef213262e15cf6915bfb0f01d94?format=hex