My browser / operating system: Windows NT 10.0, Chrome 88.0.4324.150, No Flash version detected

I duplicated a sprite, and went down to move the sprite up. It wouldn't go anywhere. I kept trying to budge it, but it stayed there. Before I knew it, all the sprites down there with it had gotten disorganized. Now, as I try moving any other sprite, they won't move. I have 178 sprites, the sprite I'm trying to move has 300 costumes (but all my other sprites usually got under 10).

This isn't the only problem I've faced, because when I drag code to other sprites, some sprites just dodge the code. I don't know the pattern to which sprites do this, but it's always the sprites at the bottom. What I mean by the sprites “dodging” the code, I mean when I hover over that specific sprite, the 5 column sprite view that's always there turns into a 4 sprite view.

I hope these bugs can be fixed soon, especially the first bug, because now I can't move my sprites (I usually avoid the second bug by zooming in the whole page at around 125-150%).

Fixed it by refreshing the page. Hours of time lost?