It certainly looks to me after the count gets to 4, the Texas player called timeout— but the ref ignores him and continues with his five second call.
That led to a crazy sequence of events, where Arizona converted a 3 point play and Texas’ final attempt failed even though there was a lot of contact— but the refs simply looked the other way.
I will let you decide if the officials blew this or not.
H/T The Big Lead for Video.