Is this a right way to say that something is not happening because of these reasons? Also, how to say if there are more than two reasons when talking (not writing)?
"Thousands of software bugs are not fixed. And this is because either we can't prove them as bugs because we don't know how to reproduce the issue again because it happened only once and we didn't collect much information when that happened or because someone thought it was bug only to find later that it was only some configurational issue"
I find it as very long sentence with lot/lots of because/becauses.