I finally found the video in question. It's posted on Facebook.
The procession took place in 2015 and it was Fr. George from Our Lady Of Damascus Greek-Catholic Church incensing a statue of Saint Vincent Ferrer as it's carried through the streets of Valletta, Malta on the saint's feast day.
It's an annual event in which the statue makes a brief stop before the church to be incensed.
Click this link to see the video from the 2015 procession plus videos from the 2017 and 2018 processions: https://www.facebook.com/hashtag/sanvincenzferrer
It's so beautiful to see the mutual respect being shown.