The maintenance window has been growing egregiously long, especially due to the launch of the second server. After realising there must be something wrong with this as other, much larger games do not have the same loading times, a breakthrough was found! The approximate maintenance window has been shortened to 20 minutes, and crash recovery should be along the lines of a minute or two.
This has involved a total rewrite of the way the server loads data in from the database on launch, so while every attempt to test and ensure data constistency has been made, there is a higher risk of data load bugs. If you feel like something has gone missing from your city, don't panic - message the devs on Discord or at [email protected] and we'll sort it!
Happy London Taking!