FRC Signal Light

In the program mode, we are getting two flashes, a pause, then two more flashes. This goes on continuously. What is it telling us?

cRIO-FRC status LED? From the cRIO-FRC user manual:

The chassis has detected an error in its software. This usually occurs
when an attempt to upgrade the software is interrupted. Reinstall
software on the chassis.

Actually - this is a condition I’ve rarely seen, so I’m curious as to how you got into this particular state.