Unable to select "Section 115BAC" after 31st July even though the deadline is extended to September

While trying to do the efiling (ITR2) u/s 115BAC, getting the following error at the last stage (during verification).

"Option for new tax regime u/s 115BAC cannot be opted after due date of filing of return mentioned u/s 139(1)"

But the due date is extended now till 30th September. Will this be updated?

Thanks