Yes, only video clips up to 15 minutes in length can be uploaded. This is the same as the default upload limitation in YouTube.
- The timeline is empty on my Story in Storyteller. What can I do?
- Why do I see the 'First Time Use' wizard again after updating Storyteller?
- How can I share my stories with Storyteller on my Lumia phone?
- What are the other icons I see on the map in the Storyteller app?
- How can I see the location of my image on a map in the Storyteller app?