None of us is able to reproduce it just based on that. We have tried, repeatedly.
What I mean by detailed is: name a specific puzzle; then starting with the base structure define as closely as you can where you pull, where you put bands, when you hit W, how long you wait after that (either seconds, or better, in terms of how the structure changes) before hitting R.
First time into puzzle 121
shake
wiggle
shake
wiggle
score is up to 9804
apply 5 bands between the two center sheets
start wiggle - score up to about 9870
'R'
CRASH to desktop
Thanks, that was helpful. We tried it and it worked once out of four times, so that's at least something to go on. We're currently still looking into it.
Don't know if it helps or not since I cannot pinpoint a specific time, but I've seen a couple times it also crashes if you grab the end of a band and try to move the anchor point while it's wiggling.
It's something I try not to get into the habit of doing, so I don't know how often it occurs in the grand scheme of things.
Client updated, no more reports. Closing.