Impossible to add a repetition in a training in the app (was able before)

Hello!

I always create my running trainings in the Garmin Connect App. I have repetitions in them (ex. 4x 2 min run - 1 min walk). Today, this feature has disappeared from the app. I can still see it on the web but not in the app. When I try to create a new training, I am stuck with the default one, I can't add steps. Is this a known issue?

I have a iPhone 12 and a Vivoactive 4S.. if that helps! Thanks :)