I just had the same problem. I did a two page chart. It was ok for a couple of days while I rehearsed it. On the gig I went to pull up the chart and it was all garbled. It happened to me with another chart about 18 months ago. I update ireal as soon as updates become available so I'm pretty sure that it would have happened prior to the latest update. Regarding the two page chart, I did for the first time use some of the icons from the keyboard (smiley faces, pointing fingers etc) That's the only difference between the two page chart that got garbled, and the other 600 plus charts that I've written, that are fine. I'll be sure to back up as soon as I write new charts in future. Hopefully the problem gets sorted out. Apart from that, love the app, ireal rocks.