I think the bug might be the user in this case. A
limited user acocunt that is.
The current release doesn't support multiple-user
accounts, nor limited user accounts. It only supports
the administrator account that installed the app.
The reason for this is the original source code developed
by Giant Company was only single-user and MS made the
beta public only 21 days after acquiring it from Giant
Company. They didn't have the time to do a total
overhaul of the source code, which is needed to change
the app from single-user to multi-user. Not to mention
the amount of alpha (pre-beta) testing needed to be
certain that the updated code works as expected.
As for the scheduling issue, there's a workaround.
First shutdown MSAS by right-clicking on its icon in the
systray and select "Shutdown MSAS," and press Enter when
the warning dialog box comes up. Double-click the clock
in the systray, select an English setting that uses a 12-
hour clock instead of a 24-hour clock. Restart MSAS by
double-clicking its icon on your desktop. Set the scan
time you want to use. You can now change your clock
setting back to whatever it was before. This should
rectifiy the problem.
These two different issues are likely to be addressed
when Beta 2 is released later this year.
Alan