I have problem also with my MBP 13 2017 Touch Bar, after 1 hour the screen will flickring and dark. I have to close the lid before the picture will appear again. Now it getting worst, It only stands for 30 minutes or less, it is very annoying when it appear while I am teaching by virtual. I always take car my MacBook carefully. I use case for it, also use Capdase Sleeve. I have this problem after 2 years using it, I've asked to Apple Authorised Stored and they charged me about $350 for screen replacement. I am very dissapointed.