Nevermind. Upon further inspection I realized that the example code that I had used to create the new _log_vprintf() redirect function was, after doing the redirect, using vprintf() to write the log output to UART0. Please mark closed.

I am using an ESP32-S2 in a quadcopter. I have set up a TCP server in the copter and have used the esp_log_set_vprintf() function to direct the ESP_LOG messages into the TCP server and I receive the log messages on the ground. The problem is, the messages continue to be sent out of UART0 as well. I ...