Hi Christiano,
it looks like the last Assetto Corsa update changed something with the data output: The RPM percentage is not working anymore. RPM absolute works, as other indicators (speed, position, etc.), but percentage not. It worked until some days ago (I think before the AC update). Could you check that please? I have Windows 10 on the PC, Simdash V6. The leds work, and in other simulations (e.g. GTR2) the function works fine.
Do you need some more Information?
Thanks a lot in advance,
Mario