I had a similar problem. You need to set the max size of the spritesheet to the next upper size. Example: the sprites for the hairs are 2240px wide. Then you need to set it to 4096.
I had a similar problem. You need to set the max size of the spritesheet to the next upper size. Example: the sprites for the hairs are 2240px wide. Then you need to set it to 4096.