Image Trace over a white square on color mode with 2 colors crashes Illustrator
This is a bug that happens on all versions of Illustrator, even CC 2019, and regardless of OS.
It's very specific, but here are the steps:
Create a new document. Color Mode doesn't matter.
Draw a square with only a white fill.
Rasterize it. Resolution and color mode doesn't matter.
Run Image Trace on it
In the Image Trace settings, set the Mode to Color and the number of colors set to 2.
Illustrator will crash.
Try it out! The expected result is probably just the same as if the number of colors was set to 3 or anything else because it's still only one color.
Hugo Miramontes commented
Hi. I wanted to bump this because the issue still persists on the latest version, Illustrator 2021. It just takes longer to crash. Attached is a short video of this bug.