Sorting does not work on custom columns

[emipm]

There are also search boxes added for each column that is in ExtraDICOMTags or MainDICOMTags but not in the regular Column DICOM Tags set, but they seem not to work.
After pressing Return, the page reloads with /filtered-studies appended, but all entries are shown.
When calling the page/api directly, (/ui/app/#/filtered-studies?ManufacturerModelName=Aera) it shows “No results” and comes back to all items.