Photos with captions only right align

Hi – I’m having an ongoing problem that I have been using a band-aid solution for; anytime I insert a photo with a caption it will only right align, even if I tell it to left align. Normally I just leave it or take out the comment, but I was wondering if there is a way to solve this. Could it be a plugin causing the problem? (Plugins seem to cause all my problems, which is why I ask).

Thank you