still can't find it

Those unable to see the Challenge after downloading and installing, please follow the above workaround. We are looking to resolve this problem soon:

Load the Editor
Go to Challenges -> Create Challenge
You don't need to add anything here, go to Challenges -> Save Challenge
Then go to challenges folder
Config will be there
Delete the challenge you created.
Load FM -> Challenges -> Your challenge will show.

Many thanks for those raising the problem, and please accept our apologies that you are experiening this issue.

As many people are noticing in other discussions as well, this seems to be a game bug, not related to just my challenge but to all of the custom ones.
While I will continue to monitor the situation and ensure that my files will be bug-free, I can assure you that, for now, there is nothing us modders can do except to wait for a game patch :)

Same prob with the challenges here

Yeah :/ Its not just this challange thats not working for me though.

Have you tried restarting the game? It shoud work

I have Subscribed and Installed the Challange,but i cant choose to play it on the game?