"Forever" meaning what?
My OSU typically needs between 2 and 3 minutes to complete.
In the last few weeks, ever since the issue with Fidelity benefits was solved by my reckoning, one-step update has slowed significantly. What used to take 3-5 minutes, this morning took 17 minutes!
Since you're a Beta user … have you discussed this with the Beta team, just to rattle another cage?
Both @WhatAmIMissing and @Harold-Jr , are you syncing to the Web? When Quicken starts, a Sync is performed to download transaction activity from the Web and Mobile apps. This can cause extra minutes of startup time.