[Moogle]

Hiya, I'm really not sure if 1.4gb of memory is the magic number. Last night, I kept the task manager open, just for fun, on my computer that has 32gb of ram. Almost the entire night, I ran that thing on assist mode and I was constantly at 1.6gb+ just for ffxiv with an average usage of 13% for the whole rig. Never had a single issue with loading the navmesh, or even crashes. I don't mean it isn't the issue, because I don't know too much about this specific program's coding, but I just wanted to make sure that more information was presented to help you guy's troubleshoot. I can do it again tonight and provide you pictures if you want, to help with your investigation.

To clarify, I was running smoothly at 1.6gb+ of memory usage last night, for several hours, on assist mode. This is a really powerful rig, so I don't know if makes a difference, but i definitely didn't see any interruptions past 1.4gb. Maybe we're possibly looking in the wrong place?

I don't think ffxiv will allocate you 1.6gb memory. I am curious to see your FPS when you take that screenshot of your task manager. You can check fps by going to systemconfiguration in the ffxiv menu.