Error in browser dev tools when navigate between pages

i have opened a ticket on github of the following


i have tried removing the following line from ud-navigation.jsx and the error is gone

if (!this.props.fixed) {
will you confirm if above line is needed and what its for.

thank you

Im getting this error as well, i remove the react dev tool and install them again no errors

I don’t have the react dev tools installed and in my case the error went away when I removed the line mentioned earlier from ud-navigation file.