https://wccftech.com/m1-ipad-pro-preorders-delayed-mini-led-shortages/

Once more, the M1 iPad Pro is reported to get delayed, which will undoubtedly anger customers who have already placed pre-orders for Apple’s larger 12.9-inch flagship tablet. Again, the reason for the delay is mini-LED supplies, which is no surprise, as consistent reports have highlighted this issue before.

DigiTimes reports that industry sources have claimed the reason for the delay of M1 iPad Pro pre-orders being its Liquid Retina XDR display.