Empty gallery because of distinct function in dependent combobox ?

[theguzz]

Hi everyone, 

I've created a gallery (based on a Sharepoint list) with three comboboxes as filter. The combobox3 is dependent on combobox2's selection. This works fine.

However, the gallery turns out to be empty, now. 

Items property on combobox3 (cb_3ebene):

Distinct(Filter(Database;Product.Value = cb_2ebene.Selected.Value);Theme.Value)

Hint: When I use ForAll instead of Distinct my gallery is not empty. However, it will show duplicate choices of my Sharepoint list. 

Items property of my gallery:

Filter(Database;Or(search.Text in Title);

Or(IsBlank(cb_1ebene.SelectedItems);
    IsEmpty(cb_1ebene.SelectedItems);
    true in ForAll(
        cb_1ebene.SelectedItems;
        ThisRecord.Value in Branche.Value));

Or(IsBlank(cb_2ebene.SelectedItems);
    IsEmpty(cb_2ebene.SelectedItems);
    true in ForAll(
        cb_2ebene.SelectedItems;
        ThisRecord.Value in Product.Value));


Or(IsBlank(cb_3ebene.SelectedItems);
    IsEmpty(cb_3ebene.SelectedItems);
    true in ForAll(
        cb_3ebene.SelectedItems;
        ThisRecord.Value in Theme.Value))

) 

 I just think it's something about the ForAll function in my gallery but I don't know how to fix this. I really appreciate any help here. Thanks in advance!

[Masino]

Filter(Database;Or(search.Text in Title);

I think there is an error here....Or?

[theguzz]

thanks for the quick reply. Do you mean the " ; " ? I'm using the European/German Power Apps verson. A "," is a ";" there.