Apple has acknowledged ongoing bugs with its Group FaceTime conferencing feature, in the wake of the eavesdropping security bug that surfaced late last month.

The problems underscore the pitfalls faced by Apple and other smartphone companies in fixing security issues that can affect millions of devices.

Apple was forced to disable Group FaceTime entirely after users discovered they could easily listen in on the devices of those they called via FaceTime.

A week later Apple released iOS 12.1.4 with a fix for the issue, and re-enabled Group FaceTime for those with the update installed.

Specifically, users can’t add more people to a call that only includes two people, with the ‘Add Person’ button being disabled on such calls.

If users initiate a call with three or more people, the ‘Add Person’ button is activated, although some users have reported problems even in that situation.

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