Incorrect events order placing from Content Center with Inventor 2018

[CattabianiI]

These are the steps to reproduce the problem.

1. Start Inventor 2018 and open an assemly.
2. Launch Event watcher exe located in "C:\Users\Public\Documents\Autodesk\Inventor 2018\SDK\DeveloperTools\Tools\EventWatcher\bin" and select UserInputEvents.OnActivateCommand and UserInputEvents.OnTerminateCommand.
3. Place from content center; select part and select one of his members.
4. At this moment the member has to be placed but the event watcher shows that OnActivateCommand[AssemblyPlaceComponentCmd] and OnTerminateCommand[AssemblyPlaceComponentCmd] have already been raised.

Doing the same things with Inventor 2017 raises the events in the proper order: OnTerminateCommand[AssemblyPlaceComponentCmd] occurs when it's completed the placing phase.

Placing a standard part works fine. 

Is it a bug?

Events list:

Inventor 2018:

UserInputEvents.OnActivateCommand
     CommandName: "InteractionEvents"
     Context: No context information
UserInputEvents.OnTerminateCommand
     CommandName: "InteractionEvents"
     Context: No context information
UserInputEvents.OnActivateCommand
     CommandName: "InteractionEvents"
     Context: No context information
UserInputEvents.OnTerminateCommand
     CommandName: "InteractionEvents"
     Context: No context information
UserInputEvents.OnActivateCommand
     CommandName: "AssemblyPlaceComponentCmd"
     Context: No context information
UserInputEvents.OnTerminateCommand
     CommandName: "AssemblyPlaceComponentCmd"
     Context: No context information
UserInputEvents.OnActivateCommand
     CommandName: "InteractionEvents"
     Context: No context information
============================================
Placing phase
============================================
UserInputEvents.OnTerminateCommand
     CommandName: "InteractionEvents"
     Context: No context information

Inventor 2017:

UserInputEvents.OnActivateCommand
     CommandName: "InteractionEvents"
     Context: No context information
UserInputEvents.OnTerminateCommand
     CommandName: "InteractionEvents"
     Context: No context information
UserInputEvents.OnActivateCommand
     CommandName: "InteractionEvents"
     Context: No context information
UserInputEvents.OnTerminateCommand
     CommandName: "InteractionEvents"
     Context: No context information
UserInputEvents.OnActivateCommand
     CommandName: "AssemblyPlaceComponentCmd"
     Context: No context information
============================================
Placing phase
============================================
UserInputEvents.OnTerminateCommand
     CommandName: "AssemblyPlaceComponentCmd"
     Context: No context information