Highlighting button gone and popup is horizontally off

[klauswiesel]

Description: We are using version 21.3.2 in an angular V18.1 project for pdf display. We are experiencing problems with the highlight functionality.

1. The highlight button is not visible when using the vetticla tab mode in edge, although there is more than enough room to show it, see first screen. Once minimizing the sidebar, the button is hown.
2. The popup does not open in the same way it does on the mozilla page, it is off to the left, see screenshot attached.

It also seems that some labels are missing. May this be the reason for the mis-placement?

Is there some easy things to check?