Unexpected Crunch Texture Format Error While Changing Quality

While I’m changing quality settings whose texture quality settings different from old one gives this error. It gives error at both build and editor. I’m using Crunched Textures at game but how can I find the texture with problem? Can anyone help me about it?
Unexpected Crunch texture format
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

I updated unity to 2019.4.16 and problem resolved.