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?
get
raiseerror
android-lint
drive
vedo
ogc
ipfs-companion
background-image
computational-finance
mybatis-sql
manualresetevent
laravel-3
android-pageradapter
htmlsession
hhvm
dependency-graph
qutip
perfetto
general-protection-fault
atari-2600
attributedstring
jsonapi-rails
proto.actor
tvos
py4j
pywrapfst
portable-applications
flash-cs5
pdf2image
nvm-windows