Community Moderator Alumni are previous members of the Moderation Team, which ensures conversations are friendly, factual, and on-topic. Moderators are here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
It's great to welcome you @Bobstead. Regarding to your question, no, there isn't an option to roll back the update. But about your issue, have you tried to restart your Blaze? If you haven't, I recommend restarting it. If this procedure doesn't work, please provide me with a picture of your Blaze display.
Hope to hear from you soon. 
Best Answer
Community Moderator Alumni are previous members of the Moderation Team, which ensures conversations are friendly, factual, and on-topic. Moderators are here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
It's great to hear that @Bobstead, it's good to know that your tracker is now working properly, if you need anything else, do not hesitate in posting it.
Happy stepping! 
Best Answer
