How can I find out why a write has failed

Where is the log file to explain why Balena fails when writing an image ?

Also, in Windows 10 I’ve noticed that I can not get any write to any SD card to work if I have Real-Time Protection on, and even when I turn it off as Windows turns it back on again I have to leave the Windows Security Window open. It would be good though if BE actually told me with a pop up that the write has failed due to the virus checker.