Hello After completely removing rF2 107 and performing a new 118 install, the Formula ISI sound are completely gone. I have yet to try other mods, I will try and add them if same issue.
You need all the mods installed. Most likely you have something missing, especially if you installed the FISI first.
This happened after a new install, reinstalled the F ISI. I have checked for everything to be installed, I will check again, However, I don't seem to be the only one affected by this. Thanks.