List [Keyword] only works for lowercase letter

[gynet]

List [Keyword] only works for lowercase letter
e.g
Run "lc list Rotated", and there is no results.
Run "lc list rotated", it works correctly and shows:
[154] Find Minimum in Rotated Sorted Array II Hard (35.69 %)
[153] Find Minimum in Rotated Sorted Array Medium (37.96 %)
[ 81] Search in Rotated Sorted Array II Medium (32.66 %)
[ 33] Search in Rotated Sorted Array Hard (31.40 %)