It happened to me as well about a month ago but I thought it was just some weird anomaly and it hasn't happened since but I haven't done anything significant since then. The really frustrating part about this is that when you open your board file the next time, it overwrites the back up file with the board with no traces and you loose everything. I lost about 4 hours of work when it happened to me. I was not amused. It happened when I was using the modern canvas. What is strange about this crash is that there is no auto save file so it looks like the board was saved as expected with no traces. I would recommend that if you get a crash while routing using the modern canvas that you make a copy of the board backup file before opening the board again or you will loose all of your previous work up to that point.
It happened to me as well about a month ago but I thought it was just some weird anomaly and it hasn't happened since but I haven't done anything significant since then. The really frustrating part about this is that when you open your board file the next time, it overwrites the back up file with the board with no traces and you loose everything. I lost about 4 hours of work when it happened to me. I was not amused. It happened when I was using the modern canvas. What is strange about this crash is that there is no auto save file so it looks like the board was saved as expected with no traces. I would recommend that if you get a crash while routing using the modern canvas that you make a copy of the board backup file before opening the board again or you will loose all of your previous work up to that point.