Hello,

related to my previous bug report.

I have a Dialog that contains a Coordinates textbox which when focused shows a Popup with a Map under that text box.

When the Form model is set in OnInitializedAsync() the Popup is shown under the anchor textbox as expected:

But when the Form model is set in OnAfterRender, the Popup is incorrectly positioned to the upper left (0, 0) corner:

The position of the popup should behave correctly regardless of where the Form model is set.