Mail app got disconnected among my Apple devices

Hello! I have 2 different g-mail accounts both linked to my Apple devices (desktop, iPad and iPhone), if I read one e-mail, deleted or did whatever in any of the devices, the others would automatically update, now it seem that they are disconnected. I have to delete junk, read in each one to keep it up to date. Anyone with the same issue? I tried deleting them from all devise and then installing them again, it coif not work. Help!!