Linda.440

Try updating the game -- logging out and logging back in. If this doesn't work, try deleting the game and reinstalling it. If this doesn't work, click on Help within the game and write a ticket on the problem. The game developers are pretty quick in responding to issues. Be sure to include your email address.

The fourth worker - David the Scientist Edit
Following the quests you will find a fourth worker in a web. So keep pushing the main quest at the beginning The scientist is found when you have finished the quest line with weiss at his radio shack this quest concludes with having to buy a hearing aid battery from him allowing the trapped person to be heard in the area of a windbreak which you must clear and after that he is seen in trapped in a spiders web. all of it takes place just north of the corner of the pyramid. (original version of game started with 4 workers and this quest yielded a 5th - currently players begin with 2 workers, add diana during tutorial phase when freeing her from a web then david becomes the 4th worker)

I have the same problem. Wondering if this is a bug or if I missed something.