Like the thread title says, I'm stuck in scenario 4 (jungle hack). After doing all the jungle hacking, climbing the fence and getting the bird scene, the game jumps back to the main menu. Scenario 5 doesn't activate and remains locked in the scenario screen. Tried five times, different status (gold, silver, none at all), no luck.
I'm running the game on PC (purchased from Steam, tried English and German language settings).
Any ideas? Thanks.