Cannot see the Learner name in OTBI report

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Hi there

I am trying to create a simple OTBI report but I do not see the names of the Learners.

Actually, if I use columns from only one folder I do get the data, but once I start mixing the columns from different folders I am missing info.

I tried it from scratch in the subject area "Learning management Real Time" - once I mix these two columns from different folders, the Person Number result is empty.

   "Workforce Learning - Learning Management Real Time"."Offering Specific Details"."Course Name" s_1,
   "Workforce Learning - Learning Management Real Time"."Worker"."Person Number"