I believe that miracles are not overtly present in contemporary apostolic ministries because the upc does not practice the doctrine of sanctification.
John 8:34-35 states,
"I assure you that everyone who sins is a slave of sin. A slave is not a permanent member of the family, but a son is part of the family forever."
Matthew 12:29, in reference to demons and sickness states,
"One cannot rob Satan's kingdom without first tying him up. Only then can his demons be cast out."
Both quotes from the New Living Translation.
Until we have conquered sin in our own spirit, by yielding to God in prayer instead of yielding to sin and lust, can we then have authority over demons and sickness. If we 'die daily' and live the 'abiding life' we can then see miracles.
Why do you think we don't see more miracles??
John 15:5
"He that abideth in me, and I in him, the same bringeth forth much fruit"
kjv