I updated autofill code to work with new Chromium based Edge. With new Edge autofill is also quicker as Chromium is much more responsible than Microsoft's old implementation in current Edge. However, for final touches we must wait until Microsoft has officially released new Edge, as something may change in between. Current development builds also use different browser executable name than old Edge.
You'll be able to autofill to development builds of new Edge after I have published next update. This likely happens within a month. PA will then also be available from Windows Store.