Scheduler Ate My Posts

I posted an entire month's worth of posts.  Each one was scheduled, showed up on the calendar view, and I could open, edit, and close the posts and they were still there.  Then I clicked to go back into Express and design another item.  When I went back to the scheduler view, everything I had done was gone and the month had reverted back to how it was from a previous day of working on the schedule.

I am using Chrome on a PC.  I have done all the posts from this same computer and browser for months with no issues.  Nothing has changed on my end.  I chatted with help, who said "everything saves to the cloud" but couldn't help me get my posts back.  I was also told to try an incognito window, but the same issue was happening there as well.  I also tried Microsoft Edge.  Same issue.  I tried a different computer on a different network.  Same issue.  I was then told it is a VPN problem, but I am not running on a VPN.  I was told to clear all cookies and cache.  Made no difference.  Then the help chat person disconnected the chat.

Anyone experience this or know a way around it?  I can't schedule any content for October!