Hi, 

even after clean up of roles on summary tasks and resource assignments per Tasks (we had more than 20 in some cases) I can see the failures for these specific records in the logs. 

is there something I need to trigger after clean up? 

When I check e.g. the Project Task in the UI it looks fine. same via advanced find. Thought it was a caching issue but even tho after another retry of the installation it fails with the same errors