Remote connection to software not working when UWF is enabled due to firewall

I'm running Windows 10 Enterprise LTSC (version 10.0.17763). I've setup everything I need and I'm configuring UWF filters. I enabled protection for C: volume, and added a couple of exclusions for:

• allowing write on my app folder in C:\Program Files\CustomApp (for updates)
• allowing write on the user's "User" Documents folder C:\Users\User\Documents\ (custom app logs, ...)
• allowing network interfaces edit

Here are the settings extracted from command uwfmgr get-config

VOLUME SETTINGSVolume bbac04fb-9c1e-4b48-8220-5b5b315a37af [C:]    Volume state:     Protected    Volume ID:        bbac04fb-9c1e-4b48-8220-5b5b315a37af    File Exclusions:Current Session Exclusions for Volume bbac04fb-9c1e-4b48-8220-5b5b315a37af [C:]    C:\Program Files\CustomApp    C:\Users\User\Documents\REGISTRY EXCLUSIONS    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nsi

My custom app runs a WebSocket server that listen to port 8080. I added a firewall inbound rule to allow all incoming requests for the app.

When the firewall is enabled and UWF filer is disabled, I can connect to my app from another PC. When UWF is enabled, the connection fails.

If I completely disable the firewall, I can connect to the app both when UWF manager is enabled or disabled.

What UWF configuration am I missing to have the firewall working as expected with UWF filtering enabled?