Consider 2 nodes with public key pk1 and pk2. A multisig address ms1 is created on node1 using "addmultisigaddress" by combining pk1 and pk2.
As per the example https://www.multichain.com/developers/multisignature-transactions/,
node2 should also use "addmultisigaddress" to add ms1 to its wallet.
However, since I don't want to reveal pk1 to node2, I tried using "importaddress ms1" but apparently the node2 wallet does not seem to recognised ms1 in later transactions.