uart_rx_one_char() not working

[mzimmers]

2019 01 02: EDITED.

Hi all -

Today I began using Cmake for the first time, because I was having trouble getting a project to build using the python script.

I've got my program building, flashing and running, but it doesn't accept any input from the console. It appears that the function uart_rx_one_char() never returns ESP_OK.

I tried CMake on the hello_world example with the same results.
Running IDF 3.1.1 on a Windows 10 system with msys2.

Thanks...

EDIT:

I also notice that when I run idf.py on one project, then attempt a conventional make on another project, I get what looks like a complete rebuild. Is it not possible to use the two build systems at the same time (with the same IDF)?