Hello Everyone,I have 2 of the Creality ld-002r SLA type printers.The problem I have with one of them is the LCD screen keeps showing black dots, I've replaced it twice and the same thing happened with the new screens, there's small black dots that start to appear and they slowly grow, then they start to create problems with the prints and I replace it again, within a week, the same thing happens.We're checking and cleaning the vat after every print, I re-leveled the bed after changing the screen, so what could be wrong?