jumps to the top don’t work in nested accordions

I’ve created a glossary using nested accordion blocks and links between the terms using html anchors (right sidebar, advanced). Everything works fine as long as I click links that move downwards inside the page. But once I click a link that leads back upwards into another main accordion item, the resp. item will open but not be the item the screen jumps to. Instead it jumps to another place each time.

Example: Open “Personen”, jump to R, open “Reno”, click on “Windar” and then on “Rosa”. It all works fine up to Windar (part of the third main accordion item) but the jump upwards to Rosa (part of the first main accordion item) won’t work.

As long as I stay within one main accordion item the jumps inbetween the nested once do work. But not if I try to leave in upward direction.

We’ve checked the jumping without javascript and then it works fine in any direction. So the bug must be in the javascript somewhere. Is this something that can be fixed within the plugin or do I have to find another solution for my glossary?

Otherwise compliments to the developer, this is definitely the best accordion block out there so far.

The page I need help with: [log in to see the link]