Occasionally has difficulty decoding packets

[makermelissa]

I've noticed this specifically with the 4" Square Display (https://www.adafruit.com/product/5808) and the Qualia ESP32-S3. It will work most of the time, but if let sit long enough (maybe 5 minutes or so), a runtime error will occur:

Traceback (most recent call last):
  File "code.py", line 97, in <module>
  File "adafruit_focaltouch.py", line 137, in touches
RuntimeError: buffer size must match format

Also, code.py is just https://github.com/adafruit/Adafruit_CircuitPython_FocalTouch/blob/main/examples/focaltouch_paint_rgb666.py with the try and except lines removed.