I could not find any rule that excludes this pad being tied to the plane. Also, I could not route a track to and from this pad. I tried to choose solid pad connections instead of thermal reliefs but that also didnt connect pad 2.
What am I missing here?
I just found the issue.
There was a hole on the board outline layer directly below the pad.
Due to both being yellow, it seems that I have overlooked the hole.
Everything work as expected now