Hi guys, I apologize if I don't post at the right place. I encounter an issue with 2D animations and spritesheets when you drag and drop from Project Window to Animation Window. You can easily reproduce it, just use a spritesheet with more than 16 sprites following this steps : - create a GameObject, add the SpriteRenderer and Animator components - in the Folder Window, create an AnimatorController and an Animation - attach the AnimatorController to the Animator components of the GameObject - drag and drop the Animation into the Animator Window - select all the sprites of the spritesheet, drag and drop them to the Animation Window at key 0. - then look at the order of the images : "sprite_0" is at 0, "sprite_1" is at 1, "sprite_2" is at 2, ...., "sprite_16" is at 16, "sprite_16" is at 17, "sprite_17" is at 18, "sprite_18" is at 19, .... and come back normal after a while (..., "sprite_30" is at 31, "sprite_32" is at 32, ...). I found the issue because I saw a little lag in an animation at runtime. I don't know if it is a known issue, if it already has been reported or fixed, so I report to you. I saw it on Unity 5.6.0f3 several months ago, I by-passed it "drag-and-droping" sprite by sprite. But now I'm working on an other project with a lot of spritesheets of many sprites, I'm using Unity 2017.3.0f3, and the issue is still there. I suppose it's not really important because it's not blocking (if you don't care, you don't see it), but a little bit anoying all the same. Do you have more informations about this? (Or what am I doing wrong?) Thanks in advance.