That means it is searching for wifi I think. Open the app and look and see what the signal strength is.
Throw us a message over in support to assist with the issue with your recipe and Wi-Fi - firstname.lastname@example.org.
Is it a slow-pulsing blue or rapid flashing? Rapid flashing is trying to reconnect to the known Wi-Fi pairing. If you do a power cycle of the unit, does it go back to the slow pulsing blue we are looking for?