Crash on startup (with the example animation) about fancymenu

[Keksuccino]

That happens because you run out of memory (RAM). Loading large animations requires lots of RAM. You can fix this by assigning some more memory to Minecraft. Around 4GB of RAM should be enough to load big animations.

I will try to add some sort of memory-check in one of the next updates to prevent minecraft from crashing. Thank you for the report!

[Archilyte]

umm
i have 8gb allocated...

[Archilyte]

ok now it works for some reason

[Keksuccino]

I think you had not enough free RAM left (because of too much stuff running in the background) ^^

[Keksuccino]

The animation loading process got improved in FancyMenu v0.4.3 and is now more optimized to use less memory.

I hope this helps a little bit. I tried to add a good way to check if an animation would need too much memory to load, but every method to check this would use even more memory.. OutOfMemoryErrors can still happen, but the chance should be lower now.