Unable to add local controller to android app if using port forward of a different port

Mobile
,
1

I had successfully set up a local controller via docker and set up custom port.
Background:
Port forward issue with controller via Docker - Alta Control - Alta Labs

Curerently I’m able to access the following URL to acces via browser:
https://1234abcd.ddns.manage.alta.inc:4433

But I’m not able to add my domain with port via the android application:
1234abcd.ddns.manage.alta.inc:4433

If I try without the port, it seems able to add but I could not see my settings inside.
I think this is likely a bug.