Lately, the Apple rumor mill has been speculating that the company is working on two new iPhone models: an overhauled iPhone 8, said to have a new bezel-less design, OLED display, wireless charging, some sort of augmented reality features, and a more pedestrian iPhone 7S model. But while there have been reports that the iPhone 8 would be delayed until later in the fall than usual, a new research note from Deutsche Bank suggests that the new iPhone might not be out until as early as 2018, according to Business Insider.

According to the research note, “several supply chain reports have suggested that key component shortages and technical challenges could delay the release of a high-end iPhone 8 device this fall.” Deutsche Bank also cites a ValueWalk report that claims sources within Foxconn are only expecting Apple to order parts for an updated iPhone 7S and 7S Plus for the fall.

Manufacturing problems are reportedly the cause of the delay

Whether or not the Deutsche Bank analysts are correct, this isn’t the first we’ve heard of iPhone 8 delays, either. Bloomberg reported in April that the upcoming iPhone could be delayed “one or two months” due to manufacturing issues, and Mac Otakara expects a delayed launch as well. And Ming-Chi Kuo, a typically reliable Apple analyst for KGI Securities, noted last week that mass-production of the iPhone 8 might not even start until October or November.