It would make more sense to me if your mismatch count was 8 out of 8, but this might help:  The H9 recognizes a PC range of 0-99. The H90 transmits / receives over a range of PC 1-100.  System -> MIDI -> PC Offset =1.

https://cdn.eventideaudio.com/manuals/h90/1.8.6/content/system-menu/midi.html