comment

src/textual/widget.py

@@ -3232,6 +3232,8 @@ def scroll_visible(
                     immediate=immediate,
                 )
             else:
+                # self.region is falsey which may indicate the widget hasn't been through a layout operation
+                # We can potentially make it do the right thing by postponing the scroll to after a refresh
                 self.call_after_refresh(
                     self.screen.scroll_to_widget,
                     self,