Re: New ICD4 doesn't debug like ICD3
An LCD attached via I2C or SPI isn't affected by an MCU reset.
The same applies for the LCDs attached through some parallel port.
If you want to reset the LCD, best practice is to start the LCD initialization sequence with a reset command.
PEBKAC / EBKAC / POBCAK / PICNIC (eventually see en.wikipedia.org)