Hi! When I started working on my project today, the following message appeared on the video track: ‘Thumbnail cache missing’. I have the file in Finder, but I don’t know how to import it into Cubase. Can anyone help me please?
P.S: I have a Mac (if that helps).
Hi,
Please read through Video support in Nuendo, Cubase, WaveLab and Dorico article.
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If you delete the cache file (vcache here on Windows) doesn’t Cubase recreate it?
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In Cubase:
- Open the (Files) Pool with Command+P.
- Scroll down to a folder “Video”.
- Right-click on a video file that is missing thumbnail cache (I don’t think that there’s an info telling which file it is).
- Click “Generate Thumbnail Cache”.
This should fix the problem.
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Hi! I followed all your steps but when I got to `click Generate thumbnail cache´ it was greyed out so I coudn´t click on it. 
And I couldn’t solve it…
If you have another way to solve it: 
If you don´t have another way to solve it: , because I really appreciate the time that you spend answering the posts, especially if you answered with a solution.
Final solution:
I deleted the video, then re-inserted it and clicked on ‘Generate thumbnail cache’ in the ‘Media’ section. Sometimes you have to do it all over again to solve problems😅 but it’s better if you can do it in a quicker way.
Really , really, thanks to all of you!
( Special thanks to battle angel, I didn’t know how to solve this until your message)
Hi, eh… It appeared again when I opened the project now 
Normally, when this option is greyed out, ot means that Cubase sees the cache.
It looks like something glitched in the project.
Maybe try to make a new project and import everything from the current one? There’s 50% chance that it will work 
Ok ,then.
Tried all of the solutions mentioned above but still doesn’t work, finally I converted the video format into a MP4 and then it worked, by using something like https://www.freeconvert.com/