At first I attempted to undock the Agena nominally. This didn't work and I had assumed I did something wrong and attempted to emergency undock. The Agena vanished from existence and several seconds later reappeared still docked to Gemini.
#Agena Reappears even after emergency undock.
copper palm
worn adder
I’ve been having the same issue as well.
oblique cypress
Will try to reproduce
harsh yoke
I have also been experiencing this issue, still after latest update. Specifically in Gemini Campaign mission 5.
heady pike
The one time I got it it seemed to be keyed to time acceleration