Heatmap gets cut off on top

Heatmap doesn't fill the entire map, instead it fills in a certain rectangle and stops abruptly.

[jamesdouble]

May I see the screenshot

It only happens like 20% of the time, which is very weird. I'm using the radius distinct mode. (I think the cut off top of the map is also a little bit visible in the used example of the homepage).

[jamesdouble]

Okay.. I see. I will check this problem when I update to swift5, and reconstruct the code.

[hussnainahmaddd]

having the same issue. please help me out