MPEG DASH SCHEDULED STREAM problem

We are using WOWZA Streaming Server 4.7.1 (Build 20635) for HLS, HDS and new for MPEG Streaming.

We have configured the Wowza like the tutorial here:

https://www.wowza.com/docs/how-to-schedule-streaming-with-wowza-streaming-engine-streampublisher

This article when HLS playback is not problem. However, the mpeg dash is broken when the contents(exactly video) is switched. Do you know or experience this reason?