I removed the duplicate post of this subject. I fully thought that this problem was resolved, as we hadn't had any more problems until the past couple of weeks.
It will be very difficult to to isolate the condition that may be at fault, since it occurs so infrequently. It has never crashed during the same tune, and I do know that, at least during one of the crashes, there was no automation activity (midi) occurring. The only condition that seems is be consistent is that we are linked over wifi, and I am the master iPad and the other guy is setup to see the lyrics when I start the recording. When we do have a crash, we lose our link, just to be safe, we do not try to re-establish it, so he manually starts his lyrics. I don't recall ever having a crash while we were not linked.
Like I said on the other post, I sent the troubleshooting report from the SLM app, but there was no data in the iPad crash history for SLM. I did send you some data from another file though that may connected to the crash since it was the same time and date of the crash.
Also, we have been running the same iOS version and the same SLM patch. The only difference is that I use an iPad 3 and he has an iPad 2.