Maybe I'm doing something wrong.
I have a sprite object made of 4 * 256/256 sized frames.
But in export, Construct 2 generates 4 single PNGs, instead of a 512*512 spritesheet PNG.
The thing is, that it generate a proper spritesheet for little sprite object. I have another sprite object made of 4 * 64/64 pngs. And it actually generate a 256*256 spritesheet.
So I was wondering if there were a maximum size for the spritesheet.