The UI complains that not all plugin fields are set, even though all my plugin fields are set.
i could not reproduce this after refreshing the page, adding source and sink and filling in all the field. May be due to some combination of events. Will try to figure out how to reproduce and update the bug.
not exactly sure how i got into that state, but I can't reproduce it anymore. Closing for now, will re-open if i see it again.