Swarm not Coordinating 4.12

When using 4.9 the coordinator is able to spread the load across all agents. When rendering from 4.12 it only uses the local agent. They are the same Agent versions and I opened the 4.12 swarms just to be safe. All agents have the same settings.

Engine 4.9 works

Engine 4.12 does not

same settings across the board.

Hi, did you find the reason and a solution? I have the same issue now after upgrade from 4.20 to 4.21. The same config, new swarm binaries (for 4.21), coordinator sees all machines and ping from agents is successful.