The current detection method which has been used in Project professional app created using recast is same as the detection method used for office 365 applications for current channel , because of which if on a particular device with office 365 is installed the project app will not be installed and vies verse . So we request you to make changes in the detection method so that Project app (x86 / X64) can successfully install on any device on which office app is installed.
For further details please find attached file.