Users have reported Adobe Air-based apps being wiped from their handsets
Early adopters of Google's latest Android operating system are warning others of problems with the software.
Issues include the update causing Nexus 7 tablets to run slowly and repeatedly crash, with several users complaining they had become "unusable".
The code also appears to remove apps built with Adobe Air and then prevent them from being reinstalled.
Adobe said it had not been aware of this "critical" bug before Tuesday and had escalated it with Google.
A spokesman for the search firm was unable to comment at this time.
'Shockingly bad'
Android 5.0 - also known as Lollipop - is described as a "quantum leap forward" by Google and has attracted several positive reviews, fuelling desire for the software.
It revamps the system's user interface, offers greater control over notifications, and makes changes to the way the OS executes code, which Google said should mean fewer "temporary glitches" than before.
At the moment, it is only available to a limited number of machines, because many network operators and device manufacturers have yet to complete their own tests.
However, owners of Nexus-branded machines - which are sold by Google itself - can install the software by downloading it from the firm's website or, in the case of the Asus-made Nexus 7, accepting an over-