NO mumbai VAC slot showing for drop box as on August 12

As on August 12, for my H1b drop box stamping, I am seeing no slots for Mumbai VAC, while all other cities are open? How is that or are they likely to open soon ? Can I shift to interview slot instead of drop box? Or can i select some other city VAC for slots, but then I have entered Mumbai VAC in my application.

I am in the same situation. does anyone have any updates or have advice ?