Operating system: Windows 10
Nvidia GeForce RTX 2060 Super
Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
31.85GB RAM

Currently in the process of creating a 40cm x 40cm all over surface pattern design print. So far everything has been fine. My total file size is 435mb.

When I select my imagery ready to turn in to Object > Pattern > Make
Illustrator decides that it can't process this, freezes and crashes.
I am on the most up to date versions of Illustrator and drivers for my RAM.
I have also tried simplifying my pathways to no avail.

Does anyone else know how to get around this issue or will this need to be updated?