A new functional plague is sweeping the 6 and 6 Plus models of iPhones everywhere. The design malfunction, dubbed “touch disease,” has a tell-tale flashing grey line across the top of the screen, and disables the touchscreen function on the device.

The glitch happens when the motherboard, solder balls, and circuit chip separate. This is common in the iPhone 6 and 6 Plus because these models use a sticker to hold these parts in place instead of metal. Jess Jones, iPad Rehab owner, says this problem affects around 20 percent of 6 and 6 Plus iPhones, and AppleInsider estimates 11 percent of iPhone troubleshooting involves touch disease.

Along with numerous disgruntled iPhone 6 and 6 Plus users, Apple may have to worry about a costly lawsuit settlement in response to touch disease. A class action lawsuit has been filed with the U.S. District Court for Northern California by plaintiffs Thomas Davidson, Todd Cleary and Jun Bai. AppleInsider reports the complaint accuses Apple of negligent misrepresentation, breach of implied warranty, unjust enrichment and breaking the Magnuson-Moss and Song-Beverly Warranty Acts.