Write-Eventlog in PowerShell does not write to the log

I had run "new-eventlog -log REI -source Status" to create a new event log on a server (Win 2008 R2).  I later decided to put my events in the Application log.  So I deleted the REI log from the EventVwr.msc.  And then entered "new-eventlog -log Application -source REI" to created the appropriate source.  The only problem is that "Write-EventLog -log Application -source REI -Id 1001 -Message "Test Message"" doesn't create an event I can see.

I created an additional source called FOO and it seems to work OK.  I can "Remove-Eventlog -Source REI" OK and trying to write to it indeed produces an error.  Add it back, OK; but no events show up.

There seems to be some artifact left around from the previous creation of the REI log.  I don't have this issue on other systems where I had not done that.

Looking for a clue as to what else might need to be cleaned up.