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Question by Adlez-Axel · May 02, 2017 at 01:25 PM · animationspriteanimatorgraphics

Help! "Assertion failed on expression: 'mem->m_ConstantClipValueCount"

Hi peops!

I hope you can help me. I just updated my Unity the other day since it has been quite some time since I last had time to develop anything. I usually just start making my graphics, so I started with a player animation - just the idle.

Then I keep getting this sort of messages:

 **Assertion failed on expression: 'mem->m_ConstantClipValueCount >= 0 && mem->m_ConstantClipValueCount <= (int)clip->m_ConstantClip.curveCount'
 UnityEditor.AnimationMode:EndSampling()
 UnityEditorInternal.AnimationWindowControl:ResampleAnimation() (at C:/buildslave/unity/build/Editor/Mono/Animation/AnimationWindow/AnimationWindowControl.cs:288)
 UnityEditorInternal.AnimationWindowState:UndoRedoPerformed() (at C:/buildslave/unity/build/Editor/Mono/Animation/AnimationWindow/AnimationWindowState.cs:367)
 UnityEditor.Undo:Internal_CallUndoRedoPerformed()**

alt text

This is what it looked like when I had to restart Unity because the sprite parts start to scale, rotate and position themselves all over the scene.

This is what it looks like when it is behaving normal:

alt text

It's just a simple keyframe animation. Then suddenly after the error messages appear the graphics/sprite elements just jumps to a new position. When I preview the animation it gets even worse. Sprites scale to 0, places themselves in places I never had them before and so on.

I suspect the installation is corrupt? Does anyone have any suggestion as to what I can do? My computer is pretty powerful and has memory left and all that. I'm pretty blank and can't really find answers anywhere :/

Unity version: 5.6.0.f3 Personal Branch: 5.6/release

fail-msg.png (118.8 kB)
screenshot-allworks.png (299.7 kB)
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