I'm having an issue with corrupted png files that were exported from Illustrator. If I export from photoshop, it's fine. I have exported from Illustrator a bunch of times before, so not sure what the problem is and what to do to correct the problem. Seems like it started with the latest update, but I'm not totally sure of that. Before this issue started, exporting to png was very fast. Now it is very slow, sometimes crashes the app, and when I do get a file and try to upload it online I get a corrupted file message. Again, this does not happen with Photoshop exported png files.

I am using the latest version of Illustrator on a Lenovo Yoga with Windows 10.
0.18362. I have tried export-as and export selection with no luck.

Thanks!