A new report on Monday claims Apple’s upcoming new iPhone handsets are experiencing production delays across the entire line-up.

Report Claims Apple Experiencing Production Delays for All New iPhones

The Economic Daily News report claims production of the Cupertino firm’s “iPhone 8” will not start until between November and December. Production of the upgrades to the iPhone 7 and 7 Plus are also said to be possibly facing delays.

EDN (via DigiTimessays the flagship OLED iPhone 8 will ship in small volumes this year, due to low yield rates at the main manufacturing plants.

While there were previous reports indicating that volume production for new iPhone devices has commenced, yield rates at the two main ODMs, Foxconn Electronics and Pegatron, have not yet reached levels that warrant mass production, the report said.

Volume production of the 4.7- and 5.5-inch models at Foxconn and Pegatron are expected to enter full production levels in August, which is 1-2 months later than the usual production schedules of new iPhones previous years, said EDN.

It should be noted that every year around this time we see reports of delays in production of the upcoming new iPhone. However, there have been numerous reports published claiming the producers of the customized OLED panel and other exclusive components required to produce the new devices are experiencing issues in producing enough quantities of the components to allow for mass production.

The EDN report is the most delayed timeframe we’ve seen yet for the new handsets.