August 9, 2020 at 9:10 am #3032
It sounds like you could have accidentally hit T. This is for Toggling between Add Clones mode and Slide Mode. Default is Add Clones mode, were you are able to drag to add or remove clones. Slide mode is for sliding the original drawings up/down through the “sea of clones” – adjusting timing of your key frames.
I hope this helps.