Pathfinder "Exclude" distorting fill outside of outline

[cbennett423]

I am attempting to knock out text out of a shape to send for laser cutting. The text has been converted to a shape, but when I use the pathfinder tool, the fill of the main shape gets distorted. When the file is viewed in outline mode, everything looks correct. Am I doing something incorrectly with the pathfinder tool?

[Monika Gause · Accepted solution]

Try if View > Preview on CPU helps.

[cbennett423]

That did correct the problem. Do you happen to know why the GPU preview looks like that?

Thanks

[Monika Gause]

They are optimized for speed, not for precision.