There are other oddities, particularly where GSM 62 pattern (mostly NI) is concerned vis a vis other campaign medals, Falklands, Gulf various etc. Have seen SWOs going hairless insisting they should all be in the same order.
May be (mostly NI) but extends from Borneo to Aden and some unpleasantness in between as well as NI. Was initially (unofficially) referred to as the Borneo GSM.