I had two projects with the same custom "user fields" on the "test" entity. But every time I copied and pasted tests from one project to another, the values in these fields pasted all jumbled up. That's because the fields need to have the same "Field Name" (ex: TS_USER_04). My fields had the same field label, but they needed to have the same field name. Ya know, that magical name automatically assigned by QC.