Hi. I have a problem I've never seen mentioned before. In brief part of one of my created activities on my Harmony 1100 goes missing. Specifically some of the customised buttons have disappeared. The two side panels are intact but the middle of the screen is blank. Only one of five activities on the remote is affected by this problem. Strangely, I can correct the problem by downloading the activity configuration again but after a few weeks and without any warning the screen goes partly blank again. I have also tried deleting the activity completely from both the remote and the website and recreating it again but the same problem happens all over again after a few weeks. The activity itself is very simple. It involves my AVR receiver plus two lighting devices. Compared to some of my other activities on the remote, the one giving me a problem is very simple. Has this happened to any of you? If so what if anything were you able to do about it? Thank you.