TCP Proxy protocol and TLS passthrough

i am trying to setup traefik as a reverse proxy in front of an mqtt broker that terminates the TLS (needed for certificate / login purposes). so my configuration in traefik includes proxyProtocol as well as TLS passthrough.

i guess this configuration is not possible given this comment: PROXY Protocol :: HiveMQ Documentation

TIP: If the TLS terminates at HiveMQ, the load balancer does not have information about the TLS.

indeed i get an SSL error on the client side if i try to activate proxyprotocol on traefik.

do you guys know if there any workaround for such situations ? nad in particular how to handle that with mqtt ?