My Primary Menue is set to “Fixed to Top on Scroll”.
The plugin “Easy Table of Contents” creates the table of content and uses/creates anchors in the line of headers (h2, h3).
Since there is no vertical offset for anchors the anchor position disappears behind the fixed Primary Menue. I handle manually set anchors by positioning them well above the line of interest. Nevertheless automatically set anchors will not work as to be expected.
Page involved using table of content:
https://no-stop.de/abc-analyse-ersatzteil-umsatz/