Hi Larry, thanks for reaching out!
This seems peculiar.Best I can guess, is that the admin with the missing events has some sort of filter set. The filters are easy to overlook, especially if the meta box is collapsed.
On the Events management page, can you have that admin click the “Clear” button in the filter box? It will help if you then go to the dashboard and then come back, as that will surely clear any GET params in the URL.
Does this make sense? Let me know if this doesn’t work for you.
Cheers!
– Casey Driscoll