Multiple Signature with multiple App Wallets

[emptylambda]

Hello folks at MeshJS

Recently I've been trying out the multi-sig tutorial and wanting to multi-sig with APP wallets only

const unsignedTx = await tx.build();
const signed1 = await appWallet1.signTx(unsignedTx, true);
const signed2 = await appWallet2.signTx(signed1, true);

Yet this seems to result in a very tiny change on the CBOR string only, (unlike, for example, if I follow the guide and do one App wallet sign followed by one Browser wallet sign; in this case the CBOR is clearly extended with a signature-like string as according to cbor.me)

Want to check if this is part of current limitation of the app wallet? or is this part of the multi-sig limitation?

Thank you in advance Best Regards EL