Overlapping heatmaps

When I build a track, with overlapping tracks and my heatmap simualtion is only completed to a point before the tracks overlap, The fat colout is in front of the upper track, which means, I cannot see if I placed the track above or under the other track[wacky]

OVERLAPPING PICTURE:
https://1drv.ms/i/s!AnEuCHli8_HJg8QG-b1fwEYikf21Hw

FROM SIDE VIEW:
https://1drv.ms/i/s!AnEuCHli8_HJg8QHy-aNjH7S6ZOVhg
 
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