Hi Audonator,
Our team looked into this problem and it appears that Unreal Editor uses a specific path to determine whether IncrediBuild is installed:
“C:\Program Files (x86)\Xoreax\IncrediBuild\xgConsole.exe”
Since in recent versions we changed our default Installation path to “C:\Program Files (x86)\IncrediBuild” this file is no longer found by the editor on new installations (Upgrades from previous versions of IncrediBuild still use the old path).
We are working with Epic Games to resolve the problem, for now, our recommendation is to uninstall IncrediBuild and reinstall it into the “C:\Program Files (x86)\Xoreax\IncrediBuild” folder where Unreal Editor looks for our files. Note that this only needs to be done only on the machines where the Unreal Jobs are initiated from.