@phaedrux I had the board mounted on a 2020 with plastic spacers and the other end with some tall spacers and I thought it was level enough but I guess not. This happened with 2 boards from the get go. I put a hair line fracture in the board. I figured it out this morning when this 1 board wasn't light up like it should and I put a little pressure on the board with a finger and everything worked ok. So I'm blaming me for doing a poor job of mounting the board. I just want to say thank you for working with me on the problem. I love the duet I have 2 delta, I3 and 4 corexy. I'm retired and I do this for a hobby. I have 3 printers, scratch built from the ground. So again thank you for the help.
William Rice