When I share from Lightroom CC 2017 (not classic) to Facebook it sends more images than one

[wickendenstreet]

When I try to share a single image to Facebook from Lightroom CC 2017, it sends all the images I happened to have imported during that session. What is going on?

I only want to share photos that I have selected. It put each picture in a separate Facebook post.

[wickendenstreet]

and the same thing happens on IOS.