I’ve been stuck here all day. I assume it’s related? 
PSA: The functionality of multiple Fedimint federations is significantly degraded due to severe DNS issues.
It seems to be the case that some federation guardians have an XYZ domain that the DNS registrar has taken over. Freedom One and Bitcoin Principals appear to have one guardian offline due to this.
Unfortunately, despite the server and keys for these guardians being intact, there is no way for the DNS of a guardian to be swapped out after the fact. We became aware of this issue last week and then became aware that multiple federations are experiencing this: https://github.com/fedimint/fedimint/issues/5482/
Given the critical state of these federations, with one guardian out of four being permanently offline, it's essential that if you have funds in these federations, you should withdraw them immediately. Unfortunately, we're unaware of other public federations, so you must withdraw to another lightning or on-chain wallet.
From our experiences, intermittent/connectivity issues can occur with guardians, and this may result in errors if not all three remaining guardians are consistently online. No other guardian of these federations has XYZ or other domains like it. So, if you're having issues, please try again later.
Unfortunately, not much can be done on the Mutiny side, so we're removing the federation setup flow in the UI as a first step. Sorry for the inconvenience.
Discussion
I had it hang like that after latest update. Ended up with a force closed channel a few days ago. May be separate to the degraded function of fedimint.
I went thru the process of closing the wallet on first device and reloading by seed on another device then closed it all the way out.
Then deleting everthing on the first device and reloading it on the first by seed. Only use from one device at a time.
We'll have an update out soon fixing the loading issue when multiple federation guardians are down.
I removed my federation connection, closed the app, and after reopening the app started up just fine
