The relaychain rpc-port param is ignored

[stakeworks]

I've set the --rpc-port param to port 9928 but still the default port, 9945, is used. The listen-addr with a different port, defined after the rpc-port, is working correctly.

Settings:
--
--rpc-port 9928
--chain polkadot
--base-path /path/
--no-mdns
--out-peers 25
--in-peers 50
--no-private-ipv4
--listen-addr /ip4/xx.xx.xx.xx/tcp/44446/ws
--listen-addr /ip6/xx:xx:xx::x/tcp/44446/ws

Result:
[Relaychain] Running JSON-RPC server: addr=127.0.0.1:9945,

The rpc-port setting for the parachain is working correctly.

Ubuntu 22.04.5 LTS
peaq-node-v4.0.0 4.0.0-polkadot-v1.7.2-417e0924631