Either with hetero -NH- groups or with -NH- as part of a chain, the hydrogen is placed inside the 120° angle of the two bonds coming from N.
I think this is fixed now: https://cdkdepict-openchem.rhcloud.com/depict/bow/svg?smi=CCCCNCCCC&abbr=off&suppressh=true&showtitle=false&zoom=1.3&annotate=none
I think this is fixed now: https://cdkdepict-openchem.rhcloud.com/depict/bow/svg?smi=CCCCNCCCC&abbr=off&suppressh=true&showtitle=false&zoom=1.3&annotate=none