In an official post, Apple reveals seven significant data and battery-related problems with iOS 14 and watchOS 7, and the company states the only fix is to "erase all content and settings from your iPhone".
Breaking these down, Apple classifies six as related to its Activity, Health and Fitness apps as well as the broader problem of "Increased battery drain on your iPhone or Apple Watch". The latter will not be a surprise to anyone who has seen the growing number of complaints directed at the company's @AppleSupport Twitter account since iOS 14 was released...
The Tame Apple Press has said it is wonderful that Apple says that these problems can be fixed without an iOS update however they appear to have overlooked having to wipe all your data from your phone to cover Apple's piss poor QA cock-up
We expect iOS 14.0.2 to come out one of these days and this never to be mentioned again.