Error in onStyleAssignment

I receive the following error but have no idea how to look for this error in UI Builder.

I am using only two Styles Logic events and they do not show any strange behaviour. How can I further analyze this error?

Any help is appreciated.

Hello @Jorg_Beyer

Please provide the APP ID and the page name where the problem is reproduced.


AppID A2090C1B-936C-A876-FF32-277A55A60700
Page contacts

The page is loading as expected, but in Chrome Console I still see the error


You seem to have invalid logic in some of the custom functions. Please check them and if there are invalid blocks there, delete them.