I have the SW Observability (Self-Hosted) integration working, kinda.
I created a Custom Attribute on the SWO side for Alert name:

So then I go to the SWSD side, and I can now see that field. I have created a Custom Form, along with a Custom Field (Text) to contain the alert name. I created a Dynamic Form Rule to ALWAYS show the custom form, though I'd like to limit that to specific categories, ideally.

I can see on the audit tab that the SWO Severity field is mapped, but the SWO Alert Name is not. I can see both fields on my custom form, too:

I then tried it as an Entity Attribute, which didn't work either.
How do I get this field mapping to work for my new field like it does for the built-in Severity level?