Bug/conflict with Ad Inserter plugin?

Hello,

Very nice theme overall, great features.
One problem I’m having…

I use the popular Ad Inserter plugin to insert content at the top, within or bottom of posts. For example, I insert Amazon ads at bottom of posts. But with the Infinity theme the Amazon ads will appear both before and after the content (duplicate).

This does not happen on other themes I use like OceanWP, Generate Press, etc.
It seems as if the content template/hook in the Infinity template is not normal.

Any ideas?
Thank you!