Extreme Closeup

Hi! I’m using the Facebook Thumb Fixer. So far it work good, but sometimes it makes an EXTREME close-up on Facebook when my post publicizes. I’m not sure how this happens. SOMETIMES, it starts out fine…normal looking picture, but then it gets real close-up. Hard to explain.

Do you know what I can do to fix this?

https://wordpress.org/plugins/facebook-thumb-fixer/