@Anonymous
A couple of questions to start...
1) Are all the columns of string/text type, or do you have other types in use in this formula (please verify in your list settings)?
2) For the delegation - how many records in your list are we talking about? The search function will not be delegable to SharePoint, so, if you have more records than the record limit in your settings, you will have issues with this.
In general for the formula -
Try changing your formula to this:
SortByColumns(
Search(
Filter('Manco-Informatie';
If(gblIsAdmin; true;
Verzender = User().FullName &&
If(SelectedStatus <> "All"; Status = selectedStatus; true)
)
);
TekstZoekVeld.Text;
"Ordernummer";
"Verzender";
"Deelorder";
"Extern";
"Product";
"Intern";
"Tekeningnummer";
"Omschrijving";
"Status"
);
I hope this is helpful for you.