List Tree Controls in Page Tree inside Link Browser not showing in correct lines with long page names or on small screen
In a website with many navigation levels and long page names some tree controls appear in the wrong line inside the Link Browser (see screenshot). Because of this the editor cannot open the subpages of these lines to choose on of the subpages for the link. (Typo3 8.7.22 Backend)
You can reproduce this bug in Link Browser > Pages by changing the width of .element-browser-main-sidebar in your browser developer tools.