First, see our entry 203081091A just before this.  The article comes from the Hong Kong Standard, a leading English-language newspaper, on 14th May 2024.  Not sure if it’s clear enough to read or not, but apparently the designer of the stamp set (and therefore the associated postcards) included a rendition of a dragon dance that is definitely not part of the bun festival, and none of the editors caught that.  This caused a tempest in a teapot, so to speak, and we felt lucky to get a set of those cards before they quietly disappeared.  FYI!