Wireguard with assigned Interfaces - Known Issues !?

[mfpck]

Hello,

Are there know issues when using the Wireguard plugin with assigned Interfaces ?
Because eg. In particular I was able to reproduce two exotic behaviors:

setup:
Two Wg instances (site2site & roadies) on two Opnsense21.7.5  hw boxes.
Both instances are assigned to an Interface each.
Site2site works and the roadies work as well.

It seem that Wg. releated Firewall Rules do not apply correct to Wg. assigned interfaces and or work randomly or just work after a reboot?
See attached two screenshots - Just applied after a reboot !?

Further it is quiet often necessary to manually reload unbound to get it to work for wg roadies (...) ?

All ideas and knowledge will be appreciated !

[mfpck]

For testing purposes I decided to delete all my asssigned interfaces to test my setup and fw. rulesets only via the default Wireguard tab BUT this is now gone, why ? It was always present and unused....restartet wg and the Opnsense as well  still gone.

What do I miss here  ?

[chemlud]

assign a fresh wg interface, but do not enable...

[mfpck]

haha ok. which one or doesn't matter, just to trigger the generation of the default one ?