When i check "Show category names" with "Category icon size - none" option "Show category names"  turns itself off after restart \ relog, But in config file "~/.config/xfce4/panel/whiskermenu-9.rc" there is a line "category-show-name=true", but names is not visible anyway.
I tried to delete the config and use default one, but it doesn't help.

There is a part of my config file:
button-title=Applications
button-icon=distributor-logo-archlinux
button-single-row=false
show-button-title=false
show-button-icon=true
launcher-show-name=true
launcher-show-description=true
launcher-show-tooltip=true
item-icon-size=2
hover-switch-category=false
category-show-name=true
category-icon-size=0
load-hierarchy=false
recent-items-max=10
favorites-in-recent=true
display-recent-default=false
position-search-alternate=false
position-commands-alternate=false
position-categories-alternate=true
menu-width=429
menu-height=604
menu-opacity=100
command-settings=xfce4-settings-manager
show-command-settings=true
command-lockscreen=xflock4
show-command-lockscreen=true
command-switchuser=\ dm-tool switch-to-greeter
show-command-switchuser=true
command-logout=xfce4-session-logout
show-command-logout=true
command-menueditor=menulibre
show-command-menueditor=true
command-profile=mugshot
show-command-profile=true
search-actions=5