Transactions type 4 are not propagated through the network

[4miners]

Expected behavior

Transactions type 4 should be propagated to all nodes of the network.

Actual behavior

There are issues with the propagation of those transactions. When we query api/node/status endpoint on the node that we're sending transactions to, we can see that amount of pending transactions is increasing. When we query other nodes of the network, pending stays at 0 - so looks like those transactions are not propagated correctly. This also leads to block beign not full:

Steps to reproduce

Execute QA stress test.

Which version(s) does this affect? (Environment, OS, etc...)

2.0.0-alpha.10

[SargeKhan]

@jondubois is there a different way in which multisignature transactions are being propagated?

[4miners]

Closed in favor of #3624