On Chapter 10 goal 5 of Gnome for the Holidays, the "build" button on the sleigh is non functional.
I have all the materials but am unable to complete the last step to receive the Reindeer.
Sw here: Updating this first post to include my message I've posted elsewhere
IMPORTANT AND URGENT INFO ON UPGRADING TO LEVEL 10
Issue: EITHER all materials made and the upgrade button not available OR your gem balance is over 100 and when all materials made the build button is available but the game takes 100 gems from you when you upgrade.
I have sent through and urgent request for help. When an issue affects us all they can trace players impacted by the glitch. I'm not lodging a ticket with support yet until the team can address the issue.