Miles-lava

Bit of a long shot but is your FPGA initialising Trig_0 in any way, e.g. Setting it to F on startup to get it into a known state? I've just recently fixed an issue on my 1085 system where everything was running normally until I used a FPGA card to set a trigger. Once this had happened the trigger was reserved by the FPGA and I could no longer control it through DAQmx even if I closed and restarted the DAQmx tasks, but I also didn't get any DAQmx errors.