Driver mismatch 5.83inch e-Paper (B) with E-Paper ESP32 Driver Board

[tkropf]

I have bought the 5.83 inch e-Paper display (red, black white) and the E-Paper ESP32 Driver Board.

Unfortunately, I do have difficulties to get even the WiFi demo to run using the Arduino IDE:
https://www.waveshare.com/wiki/E-Paper_ESP32_Driver_Board#WiFi_Demo

The prorgram compiles successfully and the web page is displayed. When selecting my display (5.38b) on the web interface any picture uploaded only leads to red scatters on the ePaper display. And also the display is set to 600x448 pixels instead of the specified 648×480. And the upload process seems to fail as the serial monitor stops in the midst of the upload like this and the web page gets unresponsive:
<<>>
<<<

If I select 7.5b V2, i.e., a wrong display, which is larger than mine, then the picture is uploaded correctly (cropped according to the display size, i.e., smaller than shown in the web interface). The upload process finished properly and the web page stays responsive. The serial monitor ends the upload process as follows:

<<>>
<<>>
<<<
e-Paper busy
e-Paper busy release

e-Paper busy
e-Paper busy release

SHOW>>>

There is a lot of flashing on the ePaper display until the final image is shown, though. Is this normal?

Obviously, the drivers are incorrect for my HW combination.

I downloaded the demo files here:
https://files.waveshare.com/upload/5/50/E-Paper_ESP32_Driver_Board_Code.7z

Any help is much appreciated.