I know I post a lot but you guys have been so helpful. I managed to fix most of my other issues by just figuring it out, reading and watching things. I don't appear to have any control over this but every mug looks great apart from there will be at least 1 or a few white dots where the ink hasn't transferred and leaves a dark dot on the paper as if the ink is still there.
I am using City ink express HR Paper 128gsm - Our White Branded paper mug size :https://www.cityinkexpress.co.uk/sub...ries/frsub-121
and Sigzworld 48 White, Double Layer ORCA Coated 11oz Large Handle Mugs https://signzworld.co.uk/shop/48-whi...on-heat-press/