Things like this is in my experience not so much a technical problem as a people problem. No inside info, but if the PM manager doesn't look eye to eye with top

Things like this is in my experience not so much a technical problem as a people problem. No inside info, but if the PM manager doesn't look eye to eye with top management (and if they are unable to solve it for any reason) then the project is going to shut down. And it will be blamed on the tech, or whatever.