Email with save file has been sent, was to big to include here. I tried the work around and it did not work, the bug happened to me before the helicopter left I can cycle through to get to the character that was picked to go on the expedition but they are invisible and all options to pick them up or interact with them are grayed out like the helicopter pad.

Hi, the same issue has happened for me,

Is there an option to send through the save path from off a Mac? I wasnt able to locate a save pathfile through Finder

Hi dyphelan,

Sorry about this! 

The Mac file path should be: ~/Library/Application Support/com.twopointstudios.twopointmuseum.

We're currently testing some fixes so hopefully this will be resolved soon! 

Thanks,

Chizel

This happened to me on the science museum level and deleting didn't work. The helicopter still couldn't take off and could not be deleted or picked up.  My janitor was heading to the mission and is either invisible or stuck under the map, I even demolished the entire museum and that didn't fix it.  My concern is that she will probably never resign if she is heading to a helicopter and this may have just bricked my playthrough.  I have been unable to load a previous save to solve this issue, restart that specific museum, pick up the employee, see the employee,  fire the employee, pick up the helicopter, delete the helicopter, cancel the mission or anything at all in the direction of resetting.

I will send my save file when I get home from work.  

Added to bugs.

:( Nasty game blocker to get this. Would be great to get a hotfix ASAP.

The drag delete in the foundations tab has fixed this issue for me a couple times for freeing up the helicopter and letting my employees return to work but on the ghost level, deleting the helicopter let it work again and let new employees use it but the two that were in the helicopter got stuck on the map. I can see them and click them but cannot pick them up or fire them. They just stood there until their needs went to zero and they quit but even then they stayed on the map with the little fired or quit icon above their head. After like 30 mins, they just disappeared.

I also had 3 botanists on the same map and two of them randomly stopped moving. I tried to place both near a flower to water it and then lost the ability to pick them up again. They also just stood there until their needs went to zero and same thing.

Hey i cannot heal my prehistory expert by dragging them to the bandage box. The only message it showed was "get some rest". I tried to drag the staff to everywhere in the room but it's either invalid or "rest". I also tried to reboot my PC and steam, but none of them worked.

Ah never mind, it just happened again on a new expedition. The bug doesn't seem to be fixed.

Yeah its not fixed, its just happened to me.

Has there been any update to this issue? Both helicopters are stuck in my save. None of the prior suggested methods unstick them. It's made my campaign mode unplayable. ​

My helicopter is also stuck and I cannot access the map for Marina Junction

Bonjour, ayant eu le bug aujourd'hui, j'ai trouvé une astuce de détruire l'hélicoptère dans l'onglet des murs, papier peint et compagnie. Et comme même en remettant un hélicoptère toujours le soucis, j'ai trouvé le soucis. Les deux employés devant partir ce sont totalement bug et ne sont plus ramassable ni rien d'autres. Du coup en faisant attention de ne pas les mettre en expéditions ça a remarché. Hélas même en démissionnant au bout d'un moment car complètement bloqué sur la piste d'atterrissage et bien ils ne partent pas et me coute un salaire TT J'étais en stream sur twitch au moment du soucis (lemondedeshaki) si jamais ça peut aider et j'ai eu le soucis sur le musée des "aliens" au moment des planètes fromages. Mais du coup je ne sais pas si c'est pas plutôt des personnages qui se bloquent et non l'hélicoptère. 

This is still an on going issue. I can demolish my helipads, put them back down, and they work maybe once or twice before it happens again. Luckily, I'm far enough in that I can afford to do that. This would be game breaking for anyone starting a level. It's also really annoying to have to constantly delete them, pick my workers up to unfreeze them, put the helipad back down, select everything again, and HOPE it works. Really hope there is a fix soon.