Issue
The ground planes are not connected via stitches, neither around the esp module nor anywhere else on the board.
Step by step guide
- Open the PCB file
- Go to "Route" -> "Via Stitching" (Like in the picture attached below)

- Select "Fill Polygon Shape" in the newly shown "Type" dropdown menu, and draw a polygon where you want the stitches

- Double click for the polygon to close and press okay
- Repeat the process to add more, small polygons on the board
Issue
The ground planes are not connected via stitches, neither around the esp module nor anywhere else on the board.
Step by step guide