Agreed that there are odd features on this bird - especially leg colour and mantle colour, but it certainly does not fit any other Chinese, Indian or SE Asian Flycatcher.
I would welcome other suggestions for a flycatcher with blue wings and tail and a clear wingbar, perhaps from outside the region.
Of all the possible species Ultramarine the closest
Cheers
Mike K
Mike KilburnVice Chairman, HKBWSChairman, Conservation Committee