publish issue with LR Mogrify/2 V5.10 on latest LR release

Issue: 

• Lightroom Classic Version Number: 11.5
• OS Version Number: Windows 10
  

Steps to reproduce:

1. Create a publish to Filesystem
2. Add LR/Mogrify configuration,
   
3. Add LR/Mogrify watermarking or test annotation
4. Publish

Expected result: 

The publish job finishes without error
Actual result: 

the publish job runs for a unusual long time and eventually terminates with popup about not executed exports due to "unknown error... Photo was not rendered. (486)" and a list of all to be published photos. see attachment

Workaround:

Use export instead of publish

OR
downgrade to LR Classic V14.1 😞

PS

I have informed tim@photographers-toolbox.com about the problem but I assume this was caused by an API-Change on LR-side.