Hello Tiest,
you write that the select on the runtime object for the view works correct. The runtime object name is "_SYS_BIC"."s0123456789trial.hihanaxs/TVGXS_SOCV".
In your role you refer to "s0123456789trial.hihanaxs.tvgxs_project:TVGXS_SOCV.calculationview".
Are both informations are correct, because in within named used in the role there is an additional package "tvgxs_project"?
It seems that "tvgxs_project" is not necessary (if your description is correct).
Personally I would use the synonym "s0123456789trial.hihanaxs.tvgxs_project::TVGXS_SOCV" for the view (with or w/o the additional package name 
).
Best Regards,
Florian