Hi again,
I understand your frustration, and I apologize that this wasn’t easy to resolve. This is not an issue I’ve seen any other reports of. I’m guessing there may be a very specific combinations of settings that would cause something like this to happen. Until we can track down what that is and I can reproduce it on my end, I cannot submit a bug ticket to get this fixed or offer a temporary solution.
If you’d like to continue troubleshooting, I’d be happy to keep trying to figure out what that combination of settings is. Just let me know.
If you’d like to verify that this bug isn’t present in a default install, you can try generating a quick test site at http://poopy.life, add a few events and export the calendar.
My suspicions now are that it may have to do with the date format that is used for the time and date settings in the events. I would try changing that to match the Global WordPress date format, resaving the events, and seeing if that fixes anything.
Thanks,
Sky