R32 causes problems.
You can reindex to hexagonal setting in Scalepack. See Scenario 5 of the Scalepack manual.
You can use both primitive and hexagonal settings in Scalepack, you can also reindex primitive setting (from Denzo) to hexagonal in Scalepack.
Comment: I have now processed my data as C2 monoclinic and the processing looks good .... but after discussing it I realized that C monoclinic lattice is a subset of rhombohedral lattice.