Hey. Is this bug report related to you missing a Building Thread?
If so, please check your currently upgrading nodes for the white blocks that are displayed underneath the time remaining on an upgrading node. Each white block represents a single building thread that has been assigned to that upgrade. Multiple threads can be assigned to reduce the time an upgrade takes. To remove and add threads, tap on the timer above the node.
Please also see
here for additional information regarding Building Threads.
If you believe there is still an error, could you send upload a screenshot of your network (200kb or less please!) and we'll review it as quickly as possible.
There are 10 types of people in the world. Those that can read binary, and those that cant.