Using this specific author as an example: https://qlever.scholia.wiki/author/Q138865594

The Scholia page comes up with no writings, despite ~27 works being attributed to this author. The following query run on the scholarly query service returns the correct number of entries:

#Works by Professor
SELECT ?item ?itemLabel
WHERE
{
?item wdt:P50|wdt:P98 wd:Q138865594. # Place author ID after wd
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],mul,en". }
}