This happend after I upgrade.
I think it’s related to css customization. Are you using a theme? Or did you customized your forum yourself?
I’m using Material Stock theme. I tried other themes, still missing the categories.
Have you tried with your-forum.com/safe-mode to deactivate the themes?
If it still doesn’t work, you can check without the plugins too, it might help you find the source of the issue
Thank you! I think its a plugin.
I’ve mentioned this in this thread, I have Material Stock theme as well with the topic preview plugin that Angus wrote if I remember correctly.