There is a bug with the member selector on the filter axis. You can
verify this on the Christmas Bird Count (Beta) page. If you add a
filter, then change it to allow multiple selections and make more than
one selection, it works the first time. If you reopen the filter and
change the selections, an error occurs in DropedNamedSet. The error
message is {"The [CellSetGridCtl_0 named set does not exist."}. The
exception code is -1056309020. Haven't tracked it down completely yet,
though it appears the set to be removed has already been removed. It
seems like it may work fine if this error is trapped for and not thrown.

Another bug with filters. If you add a hierarchical member filter,
i.e. Geography in the Christmas Bird Count (beta), and select any
option off of All, you can keep changing the filter unless you select
All again, then it does not change the display, and no error, not even
a debug.assert is raised. In fact, the Christmas Bird Count is already
in this state, and you can't change the geography filter. If you
remove it and re-add it you can see the behavior as described.
timheff (AT) leeinstitute (DOT) com wrote: