as you can see in the video, I cannot release a row inside another empty column belonging to a different row, while if I bring it over a column that already contains other elements, the horizontal row (focus?) is activated for the release of the object (in the video I didn't release it on the left column).
The behavior is the same for new empty rows... if I create 2 rows with 3 columns inside, then I create a row inside the left (empty) column in the top row... once this is done I take the newly created row and I want to move it to the left column of the row below, the operation does not happen.
If you want I'll make a further explanatory video, but I tried on 2 different installations, on 2 different sites and the behavior is the same.
Today, in order to edit my site I had to duplicate the row then move the individual desired add-ons and delete the object from the source row.
Thank you.