Xporter Integration - Some instances of TestRuns[n].Executed By ended up blank

I am using Xray and Xporter in their latest versions. I ran a Test Execution were two of the test runs were executed using normal logins and two were executed using temporary logins. When I reported on the Test Runs using Xporter, ${TestRuns[n].Executed By} is empty for the two temporary logins. What could be going on here?