I had the same Issue in the Lifeincubator area yesterday (in solo mode), after an other Bug occured (not getting the Blob Boss kill - Bonus on the stage before).
Bot started the disconnection animation and timer, but after timer expired the Bot still stood in place with its disconnecting animation. tried to move it first automatically to new (reachable) socket and have let it reconnect, when it failed to move. Then saved game and left to main menu and returned back in the game. Then tried to move it manually with same result (not moving, stuck in disconnecting animation).
The crystal bot got stuck during the Transcendance center (might not but related to the area)
No idea why, as there seems to be no props near it (there might have been, was not paying too much attention at the start of the map)
Tried saving then reloading, without effect, tried manually moving the crystal bot, but nothing worked