Kind of made it behave in a different, but still in a faulty way, like midi data is not sortet correctly, or waiting in line for other data 
Also, i have to boost velocity x10 to make the gates usable, even with velocity at 100
Here is my config.h - havent touched other files. Changed adress to 0x31, min fader to 0 and 16n is master.
/*
* 16n Faderbank Configuration
* (c) 2017,2018 by Brian Crabtree, Sean Hellfritsch, Tom Armitage, and Brendon Cassidy
* MIT License
*/
// restricts output to only channel 1 for development purposes
// #define DEV 1
// reverses faders left-to-right
#define REV 1
// flips faders up-down. You almost certainly want #REV enabled as well for this.
#define FLIP 1
// activates printing of debug messages
// #define DEBUG 1
// enables legacy compatibility with non-multiplexer boards
// #define V125
// turn on power LED
// #define LED 1
// MASTER MODE allows you to broadcast values from the 16n
// this supports up to 4 TXo modules and/or up to 4 Ansible devices and/or 1 ER-301
// uncomment this #define and compile the firmware
//
// NOTE: in MASTER MODE the 16n will not respond to the Teletype
//
#define MASTER 1
// uncomment to convert MIDI notes to I2C
// MASTER MODE must be enabled
// for Just Friends set POLYPHONY to 6
// #define JFMIDI
#define ER301MIDI
#define POLYPHONY 8
// minimum and maximum values for faders (to deal with tolerances)
#define MINFADER 0
#define MAXFADER 8135
// I2C Address for Faderbank. 0x34 unless you ABSOLUTELY know what
#define I2C_ADDRESS 0x31
const byte getMidiCCCommand = 0;
const byte sendMidiNoteOn = 1;
const byte sendMidiNoteOff = 2;
const int ccMode = 3; // should be last mode used by TxHelper + 1
const int noteOnMode = 1;
const int noteOffMode = 2;
#ifdef DEV
const int channelCount = 1;
const int ports[] = {A0};
const int usb_ccs[] = {32};
const int trs_ccs[] = {32};
#else
const int channelCount = 16;
#ifdef V125
// analog ports on the Teensy for the 1.25 board.
#ifdef REV
const int ports[] = {A15, A14, A13, A12, A11, A10, A9, A8, A7, A6, A5, A4, A3, A2, A1, A0};
#else
const int ports[] = {A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15};
#endif
#endif
// set up CCs.
// if you wish to have different CCs for TRS and USB, specify them here.
const int usb_ccs[] = {32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
const int trs_ccs[] = {32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
// set up MIDI channels for each fader
// if you wish to have different channels for TRS and USB - or for each channel - specify them here.
const int usb_channels[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
const int trs_channels[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
#endif