We've had a Facebook Like button on our homepage (i.e. associated with a URL not our Facebook Page) for a few months, and nearly every other day the number of likes resets from the actual number of Likes (over 200) to the number of Shares (6). Every time it happens, we run the URL through the Facebook linter and (usually) it will be fixed right away - though sometimes it will take a few hours or even days. Our site defaults to https: but we run the linter on both the http: and https: URLs.
We've done a lot of online research and we have not found a straight forward answer of how to stop this from continuing to happen - any thoughts?