Max crashes when starting this jitter patch (no video)

Hey guys, having this odd problem with my new patch I'm working on for a commission: it crashes the second I start up the jit.world. Any idea what I'm doing wrong? Patch below. It seems to be connected to the "upscale" parameter.

EDIT: I realise this is a not very constructive post, and I'm sorry about that. Mods, feel free to delete this at any time. The problem is not urgent for me any longer, I removed the issue by discarding the "upscale" logic I made.