Cannot configure and use PCIe Ethernet adapter on Zimaboard with ZimaOS

I am running latest ZimaOS on a 32G Zimaboard. I have an additional 2.5Gbit NIC installed in the PCIe port, which i’m using to direct connect to my main working PC in a different subnet. At least i used to with the same hardware in OMV. But ZimaOS wouldn’t let me configure this second NIC. The integrated 1Gbit NIC is connected to the router and working fine. I can configure it by clicking on the three dot config menu. Not so the PCIe NIC. It does show up, showing a green dot on the left side like the other NIC, but it’s in DHCP mode and i cant change IP adress or subnet etc.
I hope the decription of my issue is understandable. Will attach a screengrab. Clicking on the button marked in yellow will do nothing.

Screenshot 2024-12-29 140455

On another note, clicking on the menu button works on mobile (Chrome/Android), but i am still not able to configure anything. The options are greyed out.