If you open The Spaghetti Detective app and you see this warning, The Detective is not watching your prints for you. Hence you won't get alerted in case there is a print failure. 😟
Right below this warning, there is a short message that explains why The Detective decides not to watch your prints. Blow is a list of all possible reasons.
Whenever The Detective is not watching your prints, you are not using Detective Hours.
For obvious reason, there is no point to watch a printer when it is sitting idle or paused.
There is a toggle right below the webcam feed box to let you easily turn on or off watching.
If you toggled of "Watch for failures" by accident, toggle it back on and The Detective will spring into action.
When you receive an alert, you have an option to turn off watching for current print only. This is very convenient when you have a print that is causing excessive amount of false alarms. Once the current print is over and the next print starts, The Detective will be back on the duty to watch prints for you.
The Detective Hour balance for your account is displayed on the right hand side of the navigation bar. When it dips below 0, The Detective will stop watching your prints. There are several ways to get more Detective Hours.