Hello,
Sorry to hear this!
Does the issue clear after a save/load?
So that I can try to investigate your issue further, would you mind sending across your Two Point Museum folder? To do so follow this navigation path in file explorer: C:\Users\<username>\AppData\LocalLow\Two Point Studios\Two Point Museum. Once located, "Zip" the folder up (right click and you should see the option).
Zipping a folder is a way of compressing it into a smaller size. If you don't have an option to do this, you may need to download a program to help. I use one called 7zip which can be obtained here. The top option - ".exe - 64bit windows..." should do the trick. Once zipped up, you can attach it to your reply.
Thanks,
Chizel
I am currently on the Wailon Lodge and I just finished the objective right before "Shock Horror" where it asked me to remove 5 Nether Portals. I have one near the staircase in the second building and that Nether Portal is not recognized by any of my Supernatural Experts and when they are assigned to remove it, they just go around the museum as if they are on break. The Nether Portal is stuck but still releasing all the ghosts causing chaos in the museum. There's no way to remove it.