Update - still having issues with weapons in ground mode. I had to swap out both weapon choices I had to get my guns rendered again. However, the weap1/weap2 boxes are still blank. Clicking in the empty square does nothing. The only way I can fire either weapon is to double-click a target on-screen. Needless to say this is extremely unnatural and makes ground combat even less appealing.
Devs - if could examine my account and see what the problem is I'd appreciate it. I'll try to take a screen shot next time I can log in.
Made some progress - I found that I can manually drag the missing "powers" into the tray, that enable the weap1/weap2 firing. However I have to do this every time I enter ground mode - it does not "stick".