I was looking at the Wikipedia page on the Wa Language and came across something strange in the consonant table: the consonants [mʰ], [nʰ], [ɲʰ], [ŋʰ], [rʰ], [jʰ], and [lʰ]. Not only are they aspirated nasals, trills, and approximants, which I have never seen before, but the IPA symbols represent voiced consonants, meaning they are both voiced and aspirated. It is very unlikely that they are meant to be breathy voiced, because there is a prenasalized breathy voiced series [ᵐbʱ] [ⁿdʱ] [ᶮɟʱ] [ᵑgʱ], as well as a breathy voiced fricative [vʱ], all of which have ʱ after them to clearly indicate that they are breathy voiced.
What is the exact nature of these consonants? Are they voiced for the duration of the consonant's hold, voiceless for a brief period of time after the release, and then voiced again for the vowel? Are they simply meant to be voiceless aspirated like [m̥ʰ] or even just [m̥]? Or is the table even correct? No sources are given.