Not sure where SAS stores that EE settings.
But for normal preferences they are stored in the SASUSER.PROFILE catalog. And if you are running multiple SAS sessions without using the -RSASUSER option on startup then the 2nd,3rd,etc. sessions will not be able to open SASUSER.PROFILE. So you end up getting a default profile instead of your persona; preferences. That might change the tab spacing from 2 to 8 and cause a file with mix of tabs and spaces to look funny.
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