Can debugging in slow step give different results compared to running normally?

Hi,

So I have a flowchart which gives me excel errors when I run it normally ( crashing excel after opening files), but when I debug using a slow step, excel is giving me no errors. I thought it was because of the time I’m giving to excel, so I added several delay activities around to make it slower running, but still giving me same errors.

Is there any difference between running and debugging in slow step ?

What kind of errors do you get? can you post a screenshot?