Hi all! Having an issue with the grand master on a Leprecon 1636 console at another venue. I have been asked to troubleshoot the issue, but can't seem to figure it out. The grand master does not dim 12 or so of the 40+ conventionals in the rig. They remain at full even when the GM is set to 0. The individual channel faders for these 12 or so fixtures, however, do dim them. I have read and re-read the manual for the console and cannot find any setting that would make this possible. Any ideas?