Windows Antivirus

If you have antivirus installed, it might block Grave Robber executable file, that gets additional information, that is not accessible in Premiere Pro API. To be sure that Grave Robber works properly, whitelist following file:

C:\Program Files\Common Files\Adobe\CEP\extensions\knights_of_the_editing_table.grave_robber\assets\exec\spellcast_win.exe