I reviewed your account and it seems that your Rachio determined it would not skip it's scheduled watering because only 0.04in of rain was reported by your selected weather station, KATT:
I verified this report through the National Weather Services recorded data here, where we can see that in fact only 0.04in was reported.
There are two possibilities here:
1) The KATT weather station may be reporting incorrect precipitation data. In this case we would submit a ticket for investigation with our weather data provider, Aeris.
2) The more likely case is that this weather station is too distant from you to be reporting accurate data for your region. I noticed that this weather station is just about 9miles away from you, HOWEVER there are a number of Personal Weather Stations (PWS) that exist much closer, some are even within 0.2miles! I'd suggest enabling your PWS and selecting one of these. You can find detailed instructions for how to do this on our Support Article here.
Give it a shot and see if you notice any improvement. Hope this helps!