[help with skill upgrade]

of course! it says 10k. failed to notice that

Doh... PEBCAK (problem exists between chair and keyboard)

[help with skill upgrade]

hi ghosts,

I'm trying to upgrade "detection" skill (see screenshot in link). I have all required resources (skill points plus medical points; way more than enough of each).

However it won't let me upgrade to the final level. I've even run a few medical convoy recons to run up my medical points.

Am I missing some pre-requisite somewhere before it will allow me to level up in "detection"?

thanks

https://www.dropbox.com/s/q0o8v1ydlctmz7q/gr.jpg?dl=0