No crash report is made, it just disappears into the Task Manager. I've tried allocating more RAM, that didn't solve it. I'm using the Curseforge launcher.

I have the same problem I create a world start playing it, then I log out and when I try to play it again it crashes, and I also use Curse Forge launcher. It makes no crash report only saying "Java((TM) Platform SE binary is not responding" and won't start no matter what I do and I have even allocated 8G of RAM and still nada

I had a similar issue, which was fixed by removing Magnesium and Magnesium Extras.