Error Exporting Collection getting Error can't export previews.

[Picturequest]

So, I have been exporting some of my important collections as seperate catalogs. I selected iunclude Previews and Smart Previews.

I'm getting an Error that Lightroom either could not find the Preview or could not export.

The Main Files export fine. Anything I can do to fix this on future exports, or why is it not exporting the previews? The Files work fine in the Develop module and in Library.

Thanks

Max

Windows 10 LR Classic 9.X.