Transitions: White screen instead of the transition

Before proceeding, please make sure you're working with the latest version of Animation Composer.

1. Select all transition clips in your sequence.
2. The Fix Clips dialog will automatically open in Animation Composer.
3. Click the blue Fix button.
4. Animation Composer will automatically update the selected Mister Horse clips so they match your current sequence resolution.
   
   
   
    

Using older Premiere Composer?

1. Select all of the transition clips

2. Right click on the Premiere Composer's "Menu" button to open a hidden dropdown. Important! right click is the other mouse button, this is a hidden menu.

3. Press "Fix selected clips"
 

Like on the following gif:

Are you on a Mac with M1 processor? If yes, you might be experiencing a different issue. Checkout this guide instead. 

Please let us know if none of the suggestions helped.