When taking the fainted warden back to her unit from the class A prison cell, if I walk out carrying her while the alien is still talking, I end up being blocked by the laser grid without anyway to open it at the outer part of the cell, if I walk back into the inner cell there are no aliens anymore, I'm stuck there after.
Luckily starting over from the beginning of the day fix the issue for me, this time I wait patiently until the ailen finish his lines before walking out carrying the warden.