A DISPLAY STATUS would show the setting.
But if the code fails in the debugger suspend there. Try to open the table from comand window without stoping (just keep it suspended) the code.

If this works the problem is by files included into an app, if it fails it's an setting.

See example

Agnes

LPARAMETERS tcFilename

lcReturnAlias = "__dbfconvert"

IF USED(lcReturnAlias)
	USE IN (lcReturnAlias)
ENDIF

TRY
	USE (tcFilename) IN  0 SHARED ALIAS &lcReturnAlias
CATCH TO loError
	=MESSAGEBOX(loError.Message,16,BZT_MSG_BZT,5000)
debug
suspend
ENDTRY
*will stop here in case of error, just run the line from command window
Return(SPACE(0))