[UPDATE: March 28: A possible explanation for what's going on has surfaced, and suggests the bug is related to the Shared Web Credentials feature that allows apps and websites to share login info.]
Despite a lengthy beta, it seems that the iOS 9.3 bugs seem to be rolling in thick and fast. The latest bug prevents users from opening links in Safari, Messages and Mail apps, and some third-party apps.
See also: Temporary fix for the iOS 9.3 hyperlinks bug
Numerous threads have been posted up on Apple's support forum by frustrated iPhone and iPad users complaining about the issue.
"After update to iOS 9.3 on my iPhone 6 Plus I can no longer click on search links from Google anymore. Tried both in Safari and Chrome," wrote user Agathorn.
Frustrated users have also been contacting Apple via its AppleSupport Twitter account.
There are reports that iOS 9.2.1 users may also affected by the bug.
Another theory is that the bug is caused by installing an app that makes use of extensions, and that removing those apps makes the problem disappear.
Apple has been approached for comment.