Missing Emails - in box

My in box for mail from Last few weeks is missing - just “today” and “older” are listed nothing for last few weeks. I do a restore and restart and the last couple of weeks are visible but then disappear in a mater of seconds. Any ideas?

Hi Jack,
may I ask what account does this happen on? Is it IMAP/Exchange/AirSync? Is it a Gmail/Yahoo/Outlook/Other account? When this happens, can you check the Tools>Operations>Log window content and copy it here?