Cannot read properties of null (reading 'forEach')

Application ID: FDC2465E-0E7B-6B4F-FFCE-F57077986B00

Cannot read properties of null (reading 'forEach')
TypeError: Cannot read properties of null (reading 'forEach')
    at e.value (
    at $a (
    at za (
    at uc (
    at Kl (
    at Fr (
    at uc (
    at S (

Problem description

Describe what you did in console that led to the error. Please provide a description of what actually happens. Be descriptive: “it doesn’t work” does not describe what the behavior actually is. This will help us with reproducing the problem.

Steps to reproduce

Please describe steps to reproduce starting from the first action.

What the steps to reproduce the error.
I’ve attached to your app, but what’s next?

Hi Oleg, Error has not occurred again happened while switching between UI Builder and Backend if im not mistaken.

I’ve tried and didn’t see any errors, either in browser console nor on the web-page.