Many local SEOs are noticing that the Google Local Q&A or Google My Business Questions and Answers feature is buggy. Some are saying the Q&As are going missing and disappearing. Google has not confirmed the issue, as far as I can tell.

Brodie Clark was the first to notice this:

Danny Sullivan responded even:

But Danny isn’t on the local team.

There is now a thread at the Local Search Forums about this with others noticing it as well:

Seems we do have an issue.

Forum discussion at Local Search Forums.

Update: This appears to be being fixed now.