I'm using a Raspberry Pi 4B and I can't call OAK-D when I execute the watch estimation code.
Hello zht327 , did you SSH into the RPI? if so, you have to to add -X argument to ssh (eg. ssh email@example.com -X) to forward stream cv2 frames back to your host computer. This log looks completely OK, just a few warnings.
ssh firstname.lastname@example.org -X