MR Report Error on Member Prompt

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Posting here first before I open a SR to see if it is a known issue.  We have a MR report that uses member prompt for scenario.  The report was originally migrated from FR and had been working.  When I ran it yesterday, I got an error stating member selection referenced in grid is not valid.  Nothing has been changed in the outline for the scenario dimension.  The report continues to run from FR without issue.  This is happening in both Prod and Test environments.  The report ran when I removed the prompt and hard coded a member.  Screen shot