Hi to all,
I have encountered a similar problem and was able to solve it to 99% thanks to your great advice.
However, I struggle with the last entry in my account entity (which is called "Institutions"):
- In the "Related" (= "Verknüpft" in German) Tab, there is an entry called "Institutionen".

- If you click this in the related tab, then "Institutionen" shows just an empty associated grid.
- In the form's navigation bar however, there is no "Institutionen" in the panel:

- The corresponding associated view for "Institutionen" is empty:

So the question is: Why does it show up anyway?
You should know that there is a self-referential relationship between account and account (or "Institution" to "Institution"). This relationship shows accounts that are related in some way to each other, which is also displayed in the Tab "Verbunden über". I first thought that this relation is displayed by this "Institutionen"-entry in the related tab. However: "Verbunden über" contains data, but the asociated view for "Institutionen" is - as show above - empty.