What happens if an umpire interferes with a catch?

What happens if an umpire interferes with a catch? When the plate umpire interferes with the catcher, this is a delayed dead ball. If the catcher retires a runner who is attempting to steal, the interference is nullified, the same as batter interference. If the runner is not erased, he must return to the base he occupied prior to the pitch.

When the plate umpire interferes with the catcher, this is a delayed dead ball. If the catcher retires a runner who is attempting to steal, the interference is nullified, the same as batter interference. If the runner is not erased, he must return to the base he occupied prior to the pitch.