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?
xcode9
viewbag
google-compute-disk
ghostscript.net
distributed-training
pygal
winbgi
skview
jpa-annotations
json-schema-validator
sql-revoke
quickblox
context-bound
physijs
geturl
googlemobileads
opentk
new-project
int32
searchbar
clonenode
pgjdbc-ng
overlappingmarkerspiderfier
system
phpword
koa-bodyparser
wsdl2java
no-cache
nestjs-fastify
sharedpreferences