The fifth major version of Android, dubbed "Lollipop" after Google's candy-based naming scheme, was widely lauded in a positive review by sister-site CNET. It lands with a number of improved features, including a new user interface and experience, and a consistent design across the board — from smartphones to tablets, and newer devices, such as wearables.
The Lollipop update has been hit with some harsh criticism by its users since it first landed in their hands, despite strong feedback from the tech community when it was first announced earlier this year.
Users have said they "regret" the over-the-air download, saying the older Nexus 7 tablet is "laggy, restarts, and crashes randomly." In some cases, apps were not responding.
Campbell said the company had not been aware of what he described it as a "critical" bug before November 18.
But there was confusion over exactly who knew what.
App developers for Bonza, one of the affected apps, investigated the problem, one Google developer forum post said.
User "PaddyLandau" said in the post that Google said that the "-505" error is "a known issue for apps running Adobe Air on Android 5.0."
However, Campbell was quick to deny that Adobe was aware of this bug, and contrary to reports "were not working with Google on a fix."
He added that the company was not able to reproduce the problems internally.
"We're going to expand our testing and engineering will be canvassing the forum posts and bug reports for additional clues," he said.
Although the software is only available on a limited number of devices, thanks in part to the cellular carriers withholding the software until device testing is complete, many of the issues appear to be related to Google's own branded smartphones and tablets.
Android Lollipop is currently available for Google's range of Nexus phones and tablets, including the new Nexus 6 "phablet" and Nexus 9 tablet, which were released last month.
Google Nexus owners can download the factory images for their devices for installing, or download it over-the-air on Nexus 7 devices — which, based on the forums, appear to be having the most problems.