RE fusion page and media pool

i editing a doc where i use fusion to composite green screen with some picture.
after a bit of work i understand that i need higher resolution version of picture, i used gigapixel to uprez the picture, same place and same name obviously.
and open again resolve, but it keep older size, i should delete from mediapool and add again.
also relink from clip operation not seems to work.
check it please.
after a bit of work i understand that i need higher resolution version of picture, i used gigapixel to uprez the picture, same place and same name obviously.
and open again resolve, but it keep older size, i should delete from mediapool and add again.
also relink from clip operation not seems to work.
check it please.