Mac OSX 10.13.6 Illustrator 24.0 Creative Cloud
Opened a file
strokes with arrowheads to be strokes and artboards that were present when the file was closed to still be there.
Strokes were dropped to shapes and grouped and the artboards were gone.
I've seen this before and I can't figure out why it's happening. I have a file that I just worked in a few days ago and now when I open it, all the strokes I had with arrowheads are broken down into a shape for the line and a shape for each arrowhead and then the whole thing is grouped multiple times. On top of the stroke issue there were 3 artboards in the file when I closed it the other day. Now there is only one artboard. The artwork is there where the artboards should be, but the artboards themselves are gone.