SKR 1.4 (Turbo) no USB connection with RepetierHost (1 reply)

I have recently switched from RAMPS to an SKR 1.4 Turbo and my serial connection is not working. I tried macOS 10.14 and macOS 10.15 for the host OS.

The same configuration worked without issues on the RAMPS so it shouldn't be misconfigured. Serial port settings I tried:

#define SERIAL_PORT 0
//#define SERIAL_PORT_2 -1

#define SERIAL_PORT -1
//#define SERIAL_PORT_2 -1

#define SERIAL_PORT 0
#define SERIAL_PORT_2 -1

#define SERIAL_PORT -1
#define SERIAL_PORT_2 0

I also do see the board in /dev/tty.* when I plug it in, the SD card does mount.

But when I try to connect with RepetierHost it just stays on "Connection opened" with "5 commands waiting" forever.