The computer hangs when actual rendering if you use the camera clip the restriction object displeys
2.7z (779 KB)
Looks like Corona is calculating displacement even if there is clipping (which is kind of accurate as it could for example cast shadows, or be reflected), your camera is very close to it, and you have very high displacement settings. You are simply running out of RAM. I wouldn’t call this bug, but it needs Ondra’s opinion.