Yes. First thing is that you used "3,5x" as a raise size. We don't accept a comma as decimal separator, it just separates the terms (the same way you did use that in bet sizes). This mean that it's inerpreted as a raise size of 3% and a raise size of 5x. 3% is rounded to minimal allowed raise (so minraise) and 5x is a raise to 20.
You likely meant either 3x, 5x or 3.5x.
Another thing is that I strongly recommend using bigger blinds (just multiply starting pot and stack sizes by 10). Pio doesn't use fractions in bet sizes so if you want more precise rounding that will be beneficial. As an example: if a starting pot is 7 and the bet is 50% it will be rounded to 4 while with starting pot of 70 the bet will be 35.
Rerunning the simulation with 3.5x raise we still get 100% cbet (this time only bigger one). This is expected because IP has huge range advantage, equities on the flop are 69%-31% in favor of IP.
I've tried two different flops:
Jh 6d 4h - IP has 61%-39% equity advantage and is c-betting 91%
7d 5d 3h - IP has 56%-44% equity advantage and is c-betting 82%
The thing is that in your config IP's range is very tight so it's natural IP bets a lot.