Looks like you didn't actually cross the line. In options you can get it to show you the grid lines.
Think you needed to ride further up to Brook farm, all your track points around that island are in the bottom left square.
The GPS hasn’t recorded me in it, although I definitely was. I didn’t go off the road like it shows either.
I don’t mind missing tiles when it’s my fault but frustrating when it’s not.
What’s the fix if the clicking the activity doesn’t work? The GPS hasn’t recorded this very well