In the previous versions of PBI desktop, Changed BY dsiplays the name of the person who have updated the report or rehosted the report. in the case of JAN 2021 PBI desktop, Changed By displays th...
Hey Lin,
Please find the screenshot below for reference.
While you select the three dots on the report for more options, you will find Changed By and Created By. Basically changed by needs to provide the persons name who modified and not who viewed the report recently on portal. In the previous versions of PBI it was fine but from JAN 2021 version there's a issue.