This glitch allows you to pause before Umbra. It takes a bit of time because you have to restart the game, but it could potentially save time because it allows for using different oculi during Nox and it also allows you to get the last skill levels.

How to: Exit(Alt-F4) the game during the Robert/Margaret conversation. You'll notice that the game autosaves here. When you load the game you'll be back in the same conversation. As soon as the conversation is over hit escape. Done.

Tested on PC

Figured I'd talk about it here as I somewhat voiced my thoughts on discord. Normally, we would prep Oengus with a Citrine for the Umbra fight pre-Nox and just deal with not having an Emerald in Nox. This would allow us to give Oengus an Emerald before Nox, then do the Pre-Umbra Pause (lets call it PUP?), then during that time give Oengus a Citrine and do any level ups (really only Oengus & Robert give us useful levels).

Doing this takes roughly about 25-30 seconds. We could use this for Beginner-friendly strats, as it essentially makes the Nox & Umbra fights easier. If doing this can make Nox & Umbra take a combined 30 seconds faster, then obviously this will be the choice we would want to use.

Initial testing, it does appear to be a timesave. It'll be dependent somewhat on if we get some high tier Emeralds, but there is a pretty good chance we'll be getting that.

If I actually get around to routing expert, this is a no-brainer as we would want to pause before Umbra anyway, and this would just be an easy timesave.