No problem, Neil at Indie Retro News wrote that it was feature complete as the main headline, I know it's easy to confuse and just think that it's fully complete. That's why I did that devlog post here on Itch.io, but for anyone who plays it becomes clear that it lacks testing. :) So, again, thanks very much for your testing, and sorry for my insistence, but here's yet another update for your testing, this time fully concentrated on your world5 problem:
https://drive.google.com/file/d/12XoU88mNCO34DtespfZKbW7JCwB_HPZq/view?usp=shari...
What I did this time was profound, I changed for another version of the engine. It adds other minor glitches in other parts, like for example, the character can slide on your knees if you are walking then press down. But the overall performance may be improved and best of all, it's possible that the world 5 crash doesn't happens. The minor glitches will be fixed in time. Scorpion Engine is an experimental, on-going project, it has several versions and is being constantly updated. I was using a stable one, from a while ago, because it was stable for me. But it is obviously not stable for you. So, it was the recommended action by the friends at Discord: to change to another version and see if it works!