fitness app challenges

Hello Haasdit,

It looks like no one has responded to your question. Here are a couple things that might help others answer your question:

Are you seeing the challenge on both your Apple Watch and your iPhone?

Have you tried the steps found in If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open?

Was the challenge created on your end or was it a challenge you joined?

Are both your iPhone and Apple Watch up to date?

Please provide as many details as you can and thanks for using the Apple Support Communities!