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?
css-paged-media
excel-2013
dynatrace
qregularexpression
python-multithreading
duck-dns
hmvc
pinescript-v5
ienumerable
attached-properties
breakpoints
psreadline
imap-open
viewport
scriptlet
profile
build-pipeline
ecobee-api
android-widget
doctrine-odm
vantajs
pynsist
hardening
ext3
constantcontact
uiscrollview
qasync
visual-c++-extensions
android-dark-theme
streamsets