I recently was building a lesson in the nearpod platform. As I built, I would copy slides and changes wouldn't save. I would have to create a new slide. Then I tried to copy an entire presentation and made edits for my purposes. Most of the slide show saved, but the last 9 slides which were all polls would not change. I edited them and saved them 3 times and the save would not take. I finally deleted the slides and remade them new and that time it saved. Please fix this glitch, it cost me 3 hours of work.