ETC Ion XE running 3.3.8. I run a church service where we have various elements during the service but the only thing I change week-to-week is the song selection which is about 4 songs. I have 8 LED pars that uplight a wall. All are on separate addresses. during 2 of the songs 4 of them go out on several consecutive cues and then back on eventually several cues later. The tombstones show they have intensity on all the cues, they just go out on certain cues. I try to manipulate them manually and they don't respond. This also happened in another song this morning. Have never had this happen before. The other song and elements (message, prayer, etc.) were fine with no issues. Anyone have some clues of what this could be?