USB Blaster disapears from the hardware setup of the quartus prime programmer when I connect a com port with the teraterm using an FTDI usb to I2C adapter.

USB Blaster disapears from the hardware setup (no hardware) of the quartus prime programmer when I connect a com port with the teraterm using an FTDI usb to I2C adapter.

The only way to see the usb blaster back and be able to uploda the sof is to disconnect the com port from the teraterm terminal.

This is under windows 7 64 bits.

Note: the usb blaster stays in the device manager list when COM port is connected with teraterm, looks like a problem with the quartus programmer.