Black screen in the Composition panel after importing the plugin

[Best_of]

After importing the plugin to the project, the image in the Composition panel disappears. I have to reload the entire project to restore the image. I tried changing the settings of Video Rendering and Effects. Not help. Reinstalled the video card drivers. Uselessly. Reinstalled After Effects - the result is the same. I don't know what to do next.

System characteristic:

Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz

RAM 64GB

Windows 10 64 Bit

After Effects 2020 17.0.6

[ToolfarmJP]

Have you already done the operation below? You launch After Effects and then move to

Windows menu -> Workspace -> Default

[Best_of]

This don't work.

When I restart the project, the image appears. But if I insert another plugin, everything repeats. I have to restart the project again. It's impossible to work like this.

[Rick Gerard]

Motion Bro is an extension, not a plug-in. Does this problem only occur when using Motion Bro? I not have Motion Bro so I can't test it. I do have a few extensions installed that do not run on my system with AE 2020. One of them is Colorista IV. 

Have you contacted Motion Bro support? There is a contact button at the bottom of the page. Have you tried the extension in an earlier version of AE? Do the standard effects work? Have you tried changing the Video Rendering and Effects settings in the Project Settings panel (Shift + Alt/Option + Ctrl/Cmnd + k)?

[Best_of]

The same thing happens with other extensions. Here is Motion Bro as an example.

I tried changing the Video Rendering and Effects settings and changing the zoom of the Composition panel. Without result. In early versions of AE, everything worked well. This problem appeared after the last AE update.