Tunerstudio Tach readout doubles after Firmware update
 

After updating the MS2PNP firmware and Tunerstudio's software. Tunerstudio's Tach reads double the speed of the engine (I think the ECU does too but I don't know). Do I have to change the "switch polarity on cam"? I didn't had that option before the update.
I also turned off the "tach output" because I got an error after the update about it. Could that be the problem? The gauge cluster tach is still working and giving what I think is an acurate signal.

Attached is the actual setup. On a 99 stock Miata.

Fixed
 

Found out that 95+ miata's Tach are run by the ECU. So I had to turn on the tacho out and set the correct output.