Today I realized that sorter view no longer works properly. I believe just yesterday, I was able to drag a slide or a group of slides and move it/them to the place I want to move it/them to. While I was dragging, I got a visual feedback of where I could drop them in the form of a red vertical line between adjacent slides. This has always been the behavior in sorter view as long as I can remember.

Now I no longer get that. Instead, I see a red horizontal line between adjacent rows of slides while dragging. I have no idea what that line means and I can never move slide(s) to where I want to move it/them to.

I just happen to have a presentation to give in 1.5 days using Zoho Show, and this is the time when I need to move slides most to finalize the deck, but I can't. This is a very stressful situation. Please help! 

Thanks!

Yasuro