Two problems exist.

First, when creating two drag events in Prototype, it appears on the screen that both have been successfully created, but when retrieving information through the REST API, you can confirm that only one is obtained.

Second is the Actions of Node type. This is represented with a DestinationId of null. Then how can we know where it navigates to? We can find out through another property called transitionNodeID, not interactions. However, since it's a string type, if there are multiple Actions of Node type in an interaction, this cannot be properly represented and only expresses the destination of the first Action.