They are musically incorrect, from upward stems.
To be correct, their stems must be downward.
Audit Note Stems doesn't work for these notes.
A bit harsh. NWC2 is inconsistent, but stem directions are often changed to avoid lyrics or to produce a better looking slur.
More discussion of this issue here: https://forum.noteworthycomposer.com/?topic=6781.0
This tool will: Audit stem direction of beamed notes (https://forum.noteworthycomposer.com/?topic=6784.msg46514#msg46514)
Thanks. I saw those topics.
In fact, I often see the beam like Pos:-1,1 when I run "Transpose Staff".
This isn't the first time! :)