1) compiled new git : track properties crash fixed OK
I agree that this has nothing to do with the touch screen mode crash as this last one happened in 1824 in witch the track properties worked.
1) I use an ASUS A102 net book . The touch screen has a very basic possibilities to change parameters. I left in in the default state : Double click is generated by double touch, and right click by a long touch
With the touch screen mode activated, it works fine. Panning, zooming (by two fingers as for my smart phone) are very good and smooth. The only black point for me is creating routes. If you have to put a route point outside the screen, the touch to drag creates points and it's not easy to get the route you want . Moving a route point is not easy too.
but that is another story...
I am not very experienced in tablet , but I think it should not be very different. The true difference is that I can mix touches and mouse clicks
3) The crashes happened in navigation
always after around 2 hours and always with both AIS tracks and touch screen mode and always after a user action (gragging, touching, clicking etc...)
I never had a crash without. yesterday, I got a crash without AIS track, so I eliminated it and focused on the touch screen mode.
In fact I got as many crashes I wanted, in any conditions as soon as the touch mode was activated (and not the track properties one ! ) juste by clicking, touching , dragging, trying to move route point, but always near the boat. So yesterday evening, I would have answered YES! it is related to the touch mode
Today, after the compilation of the new git, I don't know. I can't for the moment reproduce and I am still testing