Tawau to Semporna — flight must arrive when?

Tawau airport arrive before 10am same-day Semporna resort speedboat — van 1.5 hr jetty then boat Mabul Kapalai. 11:30am landing miss transfer overnight Tawau or Semporna town. Book 7–8am KL Tawau flight. Resort confirms flight number. Return allow afternoon buffer. Never overland KK Semporna 9 hrs.