Non-followers/Non-following can't view my Instagram pictures

For the past few months, my Instagram pic like went from averaging about 40 per post to 10, and I didn't see any drop in viewership/likes from my posted stories.  I did happen to notice that only my followers, and those whom I follow, were the only ones able to view my Instagram pics.  I have my settings set to Public, and each post I do is checked that it's available to "Everyone".

I have no idea what's going on, and I am hoping that someone out there can give me some further insight as to what's happening, as this is affecting my reach with my art.

Thanks