Yes I have! the image I have attached was taken awhile back but it's got much worse! this came out of the nowhere in my device after the April update. This seem to be a global issue and Samsung doesn't seem to want to acknowledge this issue. My device is almost 2 years old and they are asking for Rs.57000+ to replace the screen, which is absurd! is the customer supposed to suffer the consequences of something the company has caused? I'm utterly dissapointed with company and their response, I have been a Samsung user for 7 years and I almost have their complete ecosystem, but, this will be my last Samsung device. also the same issue occured in my cousin's Note 9 as well.