The menutitle preset appears as formatted in the NewsPublisher form, but is overwritten by the pagetitle preset when the form is processed.
I removed the colon, used dashes instead of whitespace, and replaced the nowdate placeholder with “foo”, in the event that this is an undiscovered NP quirk. In all cases, menutitle is still overwritten.
If you use no &presets at all, is the menutitle also overridden by the value of the pagetitle when you save the form?
Open the “Network” tab of the browser’s developer tools before you save the form. Check the form-data in the request. Is the value correct for the fields pagetitle and menutitle?
Can you reproduce the same behaviour with a much simpler setup (maybe on a test installation of MODx)?
With presets removed entirely, values provided for menutitle are still overwritten after processing on the existing call that I shared.
The post data is correct – values provided for pagetitle and menutitle both are posted as submitted.
With the setup you provided, the form does not process at all when &preset includes +nowdate in either pagetitle or menutitle, so the use of +nowdate seems to be the culprit.