Keep having a couple of faults on my fmx. Does it about once per minute. One fault is “too many 1pps interrupts” and the other is “1pps not received”. No rhyme or reason as to which one pops up, just one or the other. Disengages my steering but can clear the fault right away and re engage. FmX is on version 10.13 and the nav is 13.2. Any ideas?