+1 for this, glad I'm not the only one. Working on a few large files and they can take an hour to open. The current one is a particularly big 6GB file. Interesting that the Max log says the scene is loaded within 3 mins. Task manager is running at single thread speed and the RAM usage is idling around 20GB, so its slowly working on something but not building any RAM, there is zero disk activity, its been in this state for about 35mins and counting now. Eventually it usually opens after approx an hour. In other scenes I have put it down to lots of forestpack but only a few bits in this scene. I can try and archive it but I am guessing its going to be huge with all textures and assets.
I think we notice this loading corona assets more in Max 2024 with the loading bar feature which is useful.
EDIT: OK after 35-40 mins of idling around at 20GB ram and no disk activity, it bursts to life with loads of disk and cpu, ram quickly builds to 55GB and the viewport gets generated. Not sure what its chewing on. My guess would be material generating related. We were trouble shooting some crashes in another large scene and uninstalled corona to test and the scene geometry generated very quickly, just with all black materials.
