Why keep an achievement that doesn’t work? Deletes or repairs but do not keep it if it is to frustrate many player However, nice game

I completed every World and Level and got every other achievement, but this one doesn't want to work for me. Any suggestions ? I already reinstalled the game and checked the files.

I NEED IT ALL THE ACHIVEMENTS I GOTTA CATCH EM ALL

I can't for the life of me, make it past the second trampoline to the island. Any advice on how to approach it and when to jump?

In the hub world, Retro VIII is available twice; once at the machine and once at the fan. The one by the fan should be Retro IX. Additionally, the world sums are completely wrong for me. They're consistently 10-20 seconds faster than the actual sum of the 10 levels....