I seem to have an issue, I follow the same steps on testnet and have no problem, on regtest the funds are lost.  I am running version 0.15.1 on Ubuntu 16.04.3 LTS

listunspent
createmultisig 1 ["address_from_above"]
createrawtransaction  [{"txid":"id_from_listunspent","vout":1}]  {"address_from_createmultisig":1.0,"change_address":1.0}
signrawtransaction "created_hex"
sendrawtransaction "signed_hex"

in testnet the multisig address created shows a balance with listunspent

in regtest, I call generate, I look at the block and see the multisig address in the transaction, but it does not show as being in my account with listunspent

any help in helping me understand this would be appreciated