I was trying to cut/paste six effects onto six models and got this crash report. I was not able to paste the effects into the desired cells, then left xlights went to a browser for a second then back to xlights--same result--then got this crash report. When re-opening the sequence I noticed that this column of cells did not have a good timing mark--could that have caused this? I used did the "magnet" effect to pull some timing marks together so there wasn't a "gap" in the timing. I was then able to drop the effects right where I wanted them. So I think I caused this one.... I was messing around with timing marks so I could get sets of effects laid out "just right" and I am thinking I probably deleted this one in days past....