I have a big and strange bug:
We have a function that creating a cursor with name acc the sys(2015).
the cursor calld 'gettempalias'.
here is the function syntax:

Local cRetvalue
cRetvalue=substr(sys(2015),3,10)
If used(cRetvalue)
	Use in &cRetvalue.
Endif
Return cRetvalue

The function worked very good in many places in the project.
for example:

cAlias=gettempalias()
	SELECT name,id;
		from prudact ;
		into cursor &cAlias. nofilter ;
		where sprudact.usefor=.t. ;
		order by 1

Today we started to get error message 'Syntax error' when I use with this function in all the places in the program.
I moving back the system date and the program working good, but if I use with date of today (or later) I getting the bug (I don't get the bug when the function creating, I get it when I using with the function) .
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Someone can resolve it?
Thank you