Created the perfect effect via BCC Edge Lighting -- a slight blurring/softening of the clip's detail, -- only to find that the effect disappeared when the video preview was set to highest resolution, and/or when rendered in a high resolution format.
I don't understand why this effect should suddenly not work at export resolution.
Sometimes a host will not pass along the high resolution information to the filter when working in low resolution mode so you might need to perform your setup in the same resolution that you are rendering. If you can provide us with some information on the host that you are using I might be able to reproduce the issue on my end and then offer some assistance.
I'll need to know the host, the format that you're working in and the resolution that you are working in while in setup mode.