I've reported this issue and uploaded file in the past, but the problem persists with version 3 release (Build timestamp: Jan 6 2019 17:30:37, Version: 3.0 (core 3). I know there is a new build, but haven't tried that yet. Judging from the change list, I don't think it would make a difference. The IR will seem to to work as it's supposed to for a while, then just when you get comfortable and just work, boom. Crash. Most of the crashes I experience with Corona is when the IR is running. Doesn't matter how simple the settings are or how large the output is. If it's running and you do normal speed work, it will crash. I'm to the point of turning it off and just hitting the render button so I don't keep getting interrupted.
I can upload another file later if you want, but I need to keep working.