I have been having a frustrating bug, this occurs when I build a RAS on my commander (UEF and seraphim but not cybran, havent tried with aeon)
Here is a replay where this occurs (at approx 30mins)
Once it occurs I cannot select units or factories except by using hotkeys, I also have to manually select commands
I am not using any mods, originally the consensus was this was a UI issue caused by a mod so i have removed them all.
Hope you can fix this One day I wish to build a RAS again.
Oh I tried reinstalling game and client