What to do if Atom does not have time to save changes before running the code?

Question

atom

For example, I wrote some python code, I look at what came out there, yes, I didn’t like the result, I make changes in the code, I run the result IS NOT CHANGED, I run it again (without changes in the code) and voila, the result has changed (as it should have been with the first time), and this happens every 2 - 10 launches, that is, it’s not really possible to work

like this. What is the reason for this, what could be the reason, what kind of magic?

I decided with the help of a crutch, changed the save to ctrl , and since I run the code with the ctrl-b combination, it is saved before running the code and this bug does not occur