Wavelab - Nuendo file exchange appears broken

On my DAW i have Nuendo 10, Cubase 10.5 and Wavelab 10.

If working in Nuendo 10 and I want to send a file to Wavelab 10 for editing, I select the audio file and choose the ‘Edit in Wavelab’ command in the AUDIO tab. Wavelab 10 opens, and the file is in place ready to edit. Once editing is complete, I click the update Nuendo button, but Nuendo has not updated, the command only opens Cubase10.5 but the file is nowhere to be seen.

So the issue is with Nuendo and Cubase on the same machine, this file transfer appears broken.

5am

Maybe the answer there:
https://www.steinberg.net/forums/viewtopic.php?f=297&t=184829