I have an issue with the Adafruit 3.5" TFT touchscreen with the Uno R4 where it only shows a white screen when running any program. It registers touch on the serial monitor, however nothing shows on the screen. When wired the same on an Uno R3 everything works as expected. Does anyone have any insight on this problem? I've double checked the pinout to make sure the SPI lines are wired correctly, made sure the pins are correct on the code side, and still does not work. I'm running the breakouttouchpaint.ino example sketch in both cases. Between the R3 and R4 there were no changes in code.
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