The issue is especially noticed when the user tries to use ‘Remix’ function for photos or videos. So, it can happen with just pictures, just videos or a combination of both. If you are trying this with video, the issue renders the video unwatchable. The audio can be heard but no video is seen, just a purple hazy screen with no Export/share option.
Export or Share option not responding in Photos app
The Export/Share issue may be caused due to various reasons – and so you should try these suggestions:
1] Update Display driver
You may need to update Graphics Drivers as this has been known to help.
3] Disable Hardware-accelerated video encoding
Launch Photos App, select ‘Settings’ from the ‘Menu’ (visible as 3 dots in the upper right corner of the app).
There, you will find your app version number in the ‘About this app’ section. If you are running version 2018.18071.****0.0 or greater, you will find a Video section with a toggle on this page (see the image above).
Now, simply slide the toggle to ‘off’ position. The action when confirmed will disable hardware-accelerated video encoding and you should be able to export or share your video. That’s it!