Any updates? I was looking at this board on Aliexpress.
Than more think.
Started to check other PCB traces and resistance to ground or even between traces and get in range 0.5Mohm.. till >200Mohm.
In some areas resistance >200Mohm but mostly in range 0.5..10Moh.
PCB material resistance (coper removed) ~0.5mohm for 1mm gap.