As I cannot see any reference on how to use properly the sysparm_query_category, may I confirm on how did you append the sysparm_query_category in get request?
weak-ptr
remote-validation
reindex
gmail.js
pgzero
rosetta
pandas-loc
nested-routes
visualstudio.testtools
i2s
sql-server-2005-express
koa
scorm
freetype
leaflet-routing-machine
modin
dry
jquery-tags-input
method-resolution-order
dash-leaflet
visx
asyncpg
ballerina-swan-lake
cross-domain-policy
master
webmatrix
ibm-cloud-schematics
object-reference
scrollableresults
yii2-formwizard