Premiere Pro transitions make image darker

[AndrewTheGreat]

What is going on with Adobe stock transitions in Premiere Pro? I started noticing it in Film impact transitions and thought it happened because they were third-party. Now I used Premiere Pro transitions like Page turn and it is clearly the problem in Premiere Pro itself. Here is a side-by-side comparison screenshot showing that while the transition is happening the image looks darker than it is (look at the blurred letters in the background - is is a nested image + blurred image (gaussian blur used)). As soon as the transition ends the image becomes what it is. I tried both whith GPU acceleration and without it - all the same. PP is 25/5/0 and it happened on erlier versions as well, so I doubt my problem is solved in the current version available.

[Richard M Knight]

Try unchecking 'Composite in Linear Colour' in the sequence settings.

[AndrewTheGreat]

I unchecked it both in the main sequence and the sequence with the images -
in vain

[Peru Bob]

Delete the Media Cache and Media Cache files:
https://community.adobe.com/t5/premiere-pro/faq-how-to-clear-your-media-cache-in-30-seconds-in-premi...
Then try pressing Enter to render the timeline and turn the red line above the timeline to green.

[AndrewTheGreat]

I dont't know how this was gonna fix this but obviously it did not help.