kanban boards

It's difficult to tell from these few words we are typing what level of experience you have with Jira, so I'm just checking where we are.  When you say 'scale tickets', I assume you mean Jira Issues.  Issues sit outside of the Zephyr Scale framework, and since the Kanban board is in Jira, it will only show Issues: that could be Issues created in Jira or Issues created in Zephyr Scale.

Here's what my filter says:  "project = MyProject".  It shows all Jira Issues in my project.

As long as the Issues you're creating (whether in Jira or Zephyr Scale) are being created against your project (there is a project selection dropdown in the Create Issue screen!), they will appear in the Kanban board if your Filter is something like the one I've used above (which is by the way, a default filter - it's not one I created).

If that doesn't help please let me know what's not working for you.