strange figure of "airspeed indicated" in the simconnect data with ver1.026b on P3D v6.1

Hi
My sim is P3D v5.4 and v6.1 on win 11, Q400 is pro version. I have installed MJC84-1026B into P3D v6.1 but kept MJC84-1025B for P3D v5.4.
My issue is that the value of "airspeed indicated" in the simconnect data is differ from the figure in PFD of Q400.
This phenomenon happens on 1026B on P3D v6.1, but does not happen 1025B on P3D v5.4. So, I could make the flight with 1025B/v5.4 with ease.
For example, during the take off, air speed in PFD is increasing to V1, Vr, then come to V2, however "airspeed indicated" value does not increase so much like 30~ 40 knot.
I have Spad.next for controlling the simconnect event, data change of Lvars, and some more function like play the sounds.
During take off situation, Spad is watching "airspeed indicated" of simconnect and compare them with the Lvar "Bugs=>Debug IAS V1, Vr, and V2" of Q400 for controlling the V1, Vr, V2 calling sound.
I could hear of those sound with 1025B/v5.4 at correct air speed, however, not hear none of sound with 1026B/v6.1.
That is my issue. I think "airspeed indicated" in the simconnect could not reach to the defined value of "Bugs=>Debug IAS V1, Vr, and V2" in case of 1026B/v6.1.
I am afraid of there might be other cause than those related to Q400 1026B, however anything does not come to mind except the difference of Q400 version.
Of course, I have checked other aircraft in P3D v6.1.
I have same type V calling control of Spad.next for other aircrafts like PMDG B737, B777, and Aerosoft CRJ pro in P3D V6.1.
All show the speed of "airspeed indicated" in simconnect and that in PFD are corresponding correctly and could hear of V call correctly too.
Would you please advise me how do I investigate forward?
Thank you in advance

M. Miyawaki

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