Weird Facebook bug sees old chat messages pop up for users

A strange Facebook problem has seen users confronted with the past.

People have reported a weird bug where old chat messages, some from years ago, are popping up again through Messenger's tabs.

The issue is particularly troubling for certain users who have seen from messages from loved ones who have passed away, or from people they haven't spoken to in a long time.

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A Facebook spokesperson told Mashable the company had fixed the issue in a statement:

"Earlier today, some people may have experienced Facebook resending older messages," it read. "The issue, caused by software updates, has been fully resolved. We’re sorry for any inconvenience."

It's not the first time Facebook has dredged up memories we'd prefer to forget.

When the platform launched On This Day last year, the feature was criticised for bringing up old photos and posts that might be painful or otherwise unwelcome. Facebook later introduced the ability to edit posts and control what memories you see.