Virtual textures can appear blurry or corrupt in the texture editor view.

Virtual textures can appear blurry or corrupt in the texture editor view.

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Open a virtual texture in the texture editor.
Zoom in or out, change mips etc.
Often part of the texture will appear blurry or corrupt.

Sometimes other operations make this worse.
For example toggling the Virtual Texture Streaming checkbox in the texture details panel off and on.