Slideshow creates blank slides & photos when running windows version on Mac running Parallels

Mac Pro 16inch 2019 running Ventura 13.2.1

Running Parallels Desktop 18 Pro

Running Windows 11 Pro 21H2

Slideshow appears to run, you can see the selected slides move through in preview and hear any video sound but the main slide image is always blank.

Exporting Video also creates blank slides whether run in the MAc or Windows environment.

In this environment there is no access to a GPU and this is not enabled in the Preferences setting.

I ideally want to use the windows version as I store the catalogue on OneDrive.

Using the old version of Lightroom 6 and the original catalogue on the same Parallels VM is fine.

Using a backup version of the catalogue via the MAC version of LC works fine.