can't combine mic positions

[Levitanus]

I've started to experiment with hise, and can't combine samples to multimic...
It's strange, because my other samples combining propertly, but these were exported from reaper just the same way I always do, and hise said there're missing channel. What can it be?
Samples: https://www.dropbox.com/s/jol6lwpdgmx04o4/voice example.rar?dl=0

[Levitanus]

Ahh! Micposition name have not to be one-character, got it! Thanks

[Christoph Hart]

They can be one character, but in this case your dynamic token mf also contains a m. However I just fixed this so from now on you can use your short names :)