Dear
first which version of BO you are using update that to BO4,.1 SP2
This is a known issue - could you please confirm what version of BO 4.1 SP are you running ?
This is problem if BO 4.1 is lesser than SP2, so if you are on BO 4.1 Sp2 Patch0 or greater & DS addon 1.3 SP0 you will be able to see reports .
Regards