video won't load, makes no sense

I have a 144MB Animate CC 2018 file with 290 frames that includes a 30MB video at the end. It tests fine in Animate, in the Browser (Chrome), and on publishing. I needed to make a small correction in the video so I did so and reinstalled it. It tests fine in Animate, in the Browser, but it doesn't work on publishing. Instead, the skinning is the only thing that appears and it shows the green/gray diagonal lines moving right to left in the progress bar. Both swf files are only 58MB. I tried opening it in IE and Firefox but it doesn't work there either....What could I have lost to make it behave like this? I don't think it's a memory problem.

Joe