We've been coming across an issue where the field placed in a Color well would not be reflected in the visualization. We are plotting by lat/long and using Size, Tooltip and Color wells. Removing the field from the Color well and adding it back from the data model would make the visualization work as expected.
Is this a known issue? If so, is a fix coming out soon? If not, what's the best way to transmit the repro file securely to Esri for investigation?