I reinstall corona 8 and send file. I have reinstalled corona 7 and the scene no longer breaks, it takes a long time to take the first step but it remains stable. In complex scenes, it takes a long time to take the first step in corona 7.
I have not been able to assess whether corona 8 is faster because it breaks, it is true that the tests in corona 8 I only did with files that demand a lot of memory. Is it possible that the problem is the apple silicon unified memory which is insufficient? Does this experience improve with the 64gb M1 Pro and Max? I am very comfortable in the macOS environment and delighted with cinema 4d and corona, it is the perfect tool for my work. I am very happy to use your render engine, so I would love to help you in any way possible related to the macOS platform. You are close to solving these little bugs... Cheer up!!!
Greetings from Spain.