I seem to have a glitch in my game. In Celebrity Island, Atlas #20, the birds on the first screen do not disappear, allowing me to get into the center section of the first page. I did clear the hut, and I've watched a video to see if I've missed something. Thanks.
the middle part on the first floor stays black until you have collected the 8 castaways on all floors. After that you return to the first floor and the bird will be gone and the middle part will be accessible.
map here. https://drive.google.com/drive/folders/1FiCNqqC93JuGU93OjvsyeOGD8httYJEX
In addition to what Roeland posted above.
If you get stuck again check out the relevant Wiki pages, quests, maps, videos, guides, walkthroughs & hidden gifts/bonuses