Without getting support to investigate further we've only got assumptions to go off here.
If you used diamond collect it's plausible you accidentally clicked 1 hr instead of 4 hr. If you manually reset everything it'd be really unlikely that such a mistake could happen for all the productions.
If it is a bug then it's not something I've encountered or heard of anyone else encountering. So if it's a bug then hopefully it's a once off but to be on the safe side lets assume it was a hacker and change your password. If having changed your password, clearing your cache, turning off and on both your router and your computer/mobile (would really depend on what kind of hacking we're talking about as to whether turning on and off would actually do anything but without knowing the specifics better to be safe then sorry), scanning your computer for viruses etc the bug is still there then I'd raise a ticket with support under "bugs".