Why is my calendar power-up not showing up on only one of my Trello boards?

[Cindy Hall]

My calendar power-up is not showing up on only one (of many) Trello boards. 

1. When I click on Power-Ups I get the pop-up that says "Add Power-Ups" (see image #1 below)
2. When I click on the blue "Add Power-Ups" button on image #1, it takes me to the "Power-Ups" page and menu (see image #2 below). On the menu it says two "Power-ups" are enabled.
3. The two "Power-ups" that are enabled are the "Calendar Power-Up" and "Aging Power-Up" (see image #3 below)
4. When I click on the calendar power-up image (see image #3 below) I get the calendar power-up image (see image #4 below). It says that the "calendar power-up was enabled on this board before recent changes we made to the way power-ups work. What does that mean to you? Your board can keep using Calendar Power-Ups for free." Yet it's not there.

Any help would be greatly appreciated! Thank you!

Image #1

Image #2

Image #3

Image #4

[Renato Fagaraz]

Hi, Cindy! Welcome to the Atlassian Community!

First of all, thanks for providing such a thorough and complete set of information when raising your question.

We're sorry to hear that the Calendar Power-Up is not showing up on one of your Trello boards. Although the Calendar Power-Up is still up and running, we've received similar reports from other customers. In all those cases, it seems simply disabling and then re-enabling the Power-Up resolved the issue.

I'd recommend you try doing the same thing and re-enabling the Calendar Power-Up on the affected board. Meanwhile, we have an ongoing internal ticket actively investigating what could have caused this issue.

If the problem persists after re-enabling the Power-Up, please don't hesitate to contact us on https://trello.com/contact.

Once again, thank you for your detailed information, and we appreciate your patience while we work on this issue!