Hi there,
Thanks for reaching out. I’d be happy to help with your question.
Unfortunately, the “tribe_events” shortcode does not yet support more than one category. This can be confusing, because the widget shortcodes do support this feature. This is planned to be added to main “tribe_events” shortcode, but I can’t say for sure when this will happen.
For now, you can only add one category using the “category” attribute. A workaround for this is to add a parent category to the ones you would like to show in the shortcode. However, this may not work in all circumstances.
If you’d like to “vote” for this feature, you can visit our User Voice forum.
Hope that helps! Please let me know if you have any additional questions about this.
Thanks,
Sky