[MartinH]

I was using MS recently during a rehearsal, and found that the pen often didn't work on the first stroke, even when I was already in Edit mode and there wasn't any long pause between my edits. After a bit more testing, I found more cases that seems to make the first stroke fail:
- during a two-finger resize
- when a one-finger drag happens, then a second touch is detected, stopping the drag (maybe this is also considered a two-finger resize)

The second case sounds convoluted, but it seems to happen a lot during normal use. When I place my palm, one part touches first and triggers a move, then the rest of my palm touches, stopping the move, then the next stroke is ignored.