I just took on a new job and it has 3 Otis Regen Drive/GCS controllers. These controller were installed in 2009 as modernization for a Dover Comp. The problem I having is their is a 20 second delay intermittently happening before take off on these units. I can get it to disappear for awhile by relearning the door travel on the I-motion II door controller but it reappears a week later or so. I've heard this was one of the ticks these controllers had when they first rolled them out. Anyone else ever seen this or had a fix? Thanks in advance.