Lobby Navigation does not work

Hi :)!

In an UPD 9 as released environment I created a lobby based on the following setup.

Element Designer:

Data Source Designer:

When the lobby is loaded the count is correctly displayed.

When the lobby is clicked the navigation page is loaded but the relevant data (4 rows) is not been loaded. Hence a client DB call is not thrown.

When the above lobby was imported to an UPD 10 as released environment the above issue did not get re-created. Further I have checked the permission set related to the objects and I didn’t notice any issue.

Can someone please help me to find the root cause?

Thanks in advance!