Oshine: Dynamic Menu Color Change on Slider Revolution is no longer working

Hello,
after an Oshine and plugin update the dynamic changing of the menu colour (depending on the slide) on my site does not work anymore.

In Oshine Options → Global Site Layout and Settings

The property ‘DISABLE DYNAMIC COLOR CHANGE ON SLIDER REVOLUTION’ is not set. Nevertheless, the menu colour change does not work.
What else could be the reason for this problem?
Thank you.

Best bet is to ask the author