When you check those back up schedule(s), do they show a status of "running" or "OK". If at least one still shows "running" when it should have completed see the following thread:
For More Information see: FMSA 10 stops external authentication; Admin Console can't stop database server or close databases
This is one of many acknowledged bugs that can be found in the Known Bug List here in the Report an Issue section of the forum.
It can also be downloaded as a database file from: http://www.4shared.com/file/8orL8apk/FMP_Bugs.html