New bed improved mine as well. My map looks about the same as yours with that weird dip… Prints fine so I stopped worrying about the numbers.
The jog video. Isn’t it that the map isn’t applied when you’re manually jogging the device? I’m assuming when you run a print it is applying it which is why your test print of squares works…
Of course, that could lead to you running into the bed manually so that could be bad.