I'm getting those total crashes too, in a simple exterior project. It renders fine with vigente and Bloom/glare effects active. But as soon as it gets to noise% limit, denoiser starts and Max crashes.
Edit: When I try to open the scene again, as soon as it opens, 3DsMAX crashes inmediatelly, no need to render again. If I open an older scene first, I can open the problematic scene without crashes, until I render it that it will explode again.