Last night I flashed my sketch and it is still running correctly this morning. However, my entire code disappeared out of the sketch overnight (I left the browser open with the computer locked). The sketch still exists, but it is now one blank line. I have tried CTL+Z, and refreshing without any effect. My other sketches are all fine.
I am working with Arduino Mega2560 r3 boards on the web IDE. The browser is Chrome on Windows 7.
Is there any backup on the cloud? Is there a different avenue I need to follow for support?
Any support is hugely appreciated!