Problems with output expander board firmware on OX 3.0

Does anyone know if the github source for the output expander board works with the 3.0 2021 version of the OX board? I just compiled and installed it, along with a few other versions, according to @zranger1’s great instructions, and now the orange light on the board is dim and steady instead of bright and blinky and the board doesn’t work anymore. These are the directions I followed:

Has the 3.x files

You can get a pre built binary here pixelblaze_output_expander/firmware/Release at v3.x · simap/pixelblaze_output_expander · GitHub