The application displays the last object created over the other objects when a second user sees the "Collaboration Whiteboard"

REPRODUCIBILITY LEVEL:
====================
Always

STEPS User 1:
====================
Steps
1. Open the link https://intranet.rivetlogic.com
2. Login with the right credentials
3. Expand the control panel from the left
4. Click on "My public profile"
5. Click on "Collaboration"
6. Create a Circle
7. Create a square
8. Move the circle over the square (The User 2 see the bug in this step)
9. Move the square over the circle


STEPS User 2:
====================
Steps
-Open the link https://intranet.rivetlogic.com
-Login with the right credentials
-Expand the control panel from the left
-Click on "Corporate"
-Click on "People directory"
-Search the "Collaboration" of the User 1

User 1 (Chrome)
https://www.screencast.com/t/RuMwBMCF

User 2 (Safari)
https://www.screencast.com/t/QRA8WcWwFII

CURRENT RESULT:
====================
The application displays the last object created over the other objects when a second user sees the "Collaboration Whiteboard"

EXPECTED RESULT:
====================
The application displays the real movements of the objects for all the users