Communication with background render service might fail. If EDIUS X build currently installed is 10.10.6765 or earlier, upgrade to the latest build 

If the issue still remains or you use EDIUS 11, try following trouble shooting:

I. Fix render service settings

1) In File Explorer, run below program:

EDIUS X: C:\Program Files\Grass Valley\EDIUS Hub\Tools\AdminConsole.exe
EDIUS 11: C:\Program Files\Grass Valley\Chorus Hub\Tools\AdminConsole.exe

2) Double-click EHRenderService / Render Service icon

3) If Port number is not 1224, set 1224

4) Click OK (Do not click Cancel)

5) Click Close to quit AdminConsole

6) Restart the OS

7) Start EDIUS 

II. Restart render service

     If above steps do not help, try initializing the services by following steps:

1) Open Windows Task Manager

2) Go to [Services]

3) Right-click each item listed below and choose Stop

– EHAssetStore
– EHRenderService
– EHApiGatewayService 
– EHApplicationHost 
– EHConfigStore 
– EHIdentityService 
– EHMessageService 
– EHQueueService (if exists)
– EHSyncService (if exists)

4) Rename existing C:\ProgramData\Grass Valley\EDIUS Hub to EDIUS Hub.old – only EDIUS X

5) Restart the OS

6) Run EDIUS

NOTE:
If there is Rendering/Export (any job appears in the job list) soon after the above procedures, it maybe necessary for uninstall Edius without deactivation, remove remaining Edius folders listed below before reinstalling Edius 10.10.7490 or later / EDIUS 11. This will ensure a clean installation of Edius X / 11 and correct the rendering and failed to communicate issues.

EDIUS 11
C:\ProgramData\Grass Valley\EDIUS\11.00

EDIUS X
C:\ProgramData\Grass Valley\EDIUS\10.00
C:\ProgramData\Grass Valley\EDIUS Hub