Step to reproduce
One subform with embedded views + single category defined
Notes client on mac has opened the database
the Designer modifies: the view AND the formula for single category (from one field to a more complex formula using @if)
to be able to see the modificaition on the document the end user needs to quit Notes and relaunch, steps to close the db and reopen is insufficient.
Correct on Windows platform (Win 7 64 bits with admin+designer).