More users are irked by the flaws of the iOS 8. In our previous report, the Cupertino-based tech giant's latest flagship OS had bug issues with the HealthKit, a feature that's supposed to integrate health information from other apps and deliver them conveniently to physicians upon the users' permission.

This time, users have reported inability to establish calls right after updating their device to iOS 8.0.1. According to Bloomberg, Apple has withdrawn the update after receiving feedback. In addition, customers also noticed the Touch ID fingerprint-scanning system to be non-functional under the update.

UberFacts advised in a tweet, "Do not update to iOS 8.0.1 - You might not be able to make calls or send texts after doing so."

Updating is optional - the iOS 8 in itself required a whopping 5.8 GB (at least) of storage, as reported earlier in Latinos Post.

Mobile application performance management company Crittercism has published a report which revealed that apps tend to crash 78% more frequently in the iOS 8 than its iOS 7 predecessor. BGR reported that the APM company analyzed data across iOS users between Sept. 17 and Sept. 22. The results show that app crash rates fell at 3.56% across all devices operating on iOS 8.

The findings specified that older iPhones are worse. Apps crashed 3.57% more often on the iPhone 5s, iPhone 5c and iPhone 4s from Sept. 22. In addition, iPhone 6 apps crashed 2.63% often while the iPhone 6 Plus apps crashed 2.11%.

The outlet added that the same devices running iOS 7.1 had apps crash by only 2% - the figure went up from 1.6% earlier in March.

In a report by Network World, Crittercism CEO Andrew Levy cited that a possible reason for the high crash rate is Apple's speedy gesture in software technology. According to the outlet, there are about 4,000 APIs (Application Program Interface) in iOS 8. Levy said, "Apple seems to be moving even faster than a lot of developers" He added that the company introduced new APIs to cater various screen sizes and optimize the GPU. Both changes are aimed at the company's new products.

Does the update issue outweigh the iOS 8's more promising features such as access to iCloud Drive and the QuickType keyboard? Apple brands the iCloud Drive to allow users to work "anytime, anywhere." Meanwhile, the QuickType is said to "predict what you'll likely say next."

Patience would help for now. Apple spokesperson Trudy Muller announced, "We are actively investigating these reports and will provide information as quickly as we can...In the meantime, we have pulled back the iOS 8.0.1 update."