
Eighth-seeded Soon Huat-Shevon only had themselves to blame as they squandered their first game win of 21-14 and allowed unseeded pair Callum Hemming-Jessica Pugh of England to mount a comeback.
The world No 48 pair prevailed over Soon Huat-Shevon, ranked 13th in the world, 21-13 in the second game followed by a 21-12 win in the rubber to set up an encounter against Adam Hall-Julie Macpherson.
Adam-Julie created an upset with a straight games victory over Yew Sin-Liu Ying, who were making their debut after announcing their partnership in January.
The Scottish pair took just 26 minutes to eliminate Yew Sin-Liu Ying 21-16, 21-13.