Beginning Balance for Balance Sheet account does not match ending from prior month (and year)

We have a 9/30 Year End. The 10/01/2018 beginning balance for just one balance sheet account does not match the 9/30 YE balance.

If I run a detailed GL for the account using the selection criteria of "by date" - it is correct. But if I run it just for the first month of the new year, it shows the incorrect beginning balance.

Also, the actual Balance sheet shows an incorrect balance since it was using the wrong beginning balance.

Anyone ever had this happen?