Hello everyone, I have managed to fix my issue, please disregard this. I am just going to write my solution for anyone else who encounters the same problem.
I was having the PhysX plugin for 3ds Max 2017 crash when trying to create cloth. I fixed it by downgrading the plugin to the one for PhysX 3.3.2, instead of 3.3.4
I have Apex 1.3.2, and PhysX 2.8.4, if that matters.
Thanks anyways!