Troubleshooting a corrupt file

I’ve had two projects that failed near the end of a long run time when the tool suddenly veered into my finished piece. I’ve run this file many times without error.

Could the file be corrupt now? How can I trouble shoot this?

Welcome tot eh forum, did you try and simulate the file? does it do the same thing? a picture of your results and share the file so we can take a look at it for you.