Hello,
I've been getting this crash a lot of times since corona 4 , here are the steps:
In IR using region render, I stop the render to change the resolution to a bigger size (to get more details), I change the res and when I start the render again it crashes, if I change while rendering it also crashes.
It happens to different scenes and cinema R20 - 21
Corona 5 RC2 - Cinema 4D r21 Mac - Mojave OS
Thanks!