Cher said:

When I upgrade a building, the progress indicator does not move.  The only thing I can do is use a boost to complete.  I have logged out and refreshed but still having same problem.  Is anyone else experiencing this  bug which occurred once I got to level 8.

Dear CHER! Could you please describe the situation in detail? Please add some screenshots from the game and clarify the platform that you playing through.

We want to help you but we need more information about your situation.

Waiting for your answer in private message and thanks in advance!