After the editor loses focus! The RenderTexture information created by the code is cleaned up!

In the project, I created some RenderTextures using code, but when the editor loses focus (switching the rest of the window, switching back to the Unity editor), the contents of the Rendertexture are grayed out! I’m sure that when I use Rendertexture, I don’t use the rest of the code for Release(), and my Rendertexture is created using the new method! instead of GetTemporary()