Config for caddy v2, RDP not working

[huuub]

I am using a vm machine created on proxmox 8 bare metal using https://tteck.github.io/Proxmox/ So it has it's own IP address. Locally it works. I got it to work on Caddy V2 by adding these 2 parameters in the config: TLSoffload and Cert and putting my domain there. (no need for the relay ports since it is using its own IP) However the RDP possibilities are greyed out then. I also tried using the cloudflare tunnnel and see the same behaviour.

caddy config: meshcentral.mydomain.com { tls cloudflareemail { dns cloudflare cloudflarekey } reverse_proxy 192.168.1.x:443

Is there anything I still need to get RDP working?