Fix buffer flip #340

Job	Run time
build-and-publish-all-environments	0s
collect-environments	6s
build-environment (demo)	3m 18s
build-environment (m5demo)	3m 49s
build-environment (m5plusdemo)	3m 45s
build-environment (heltecdemo)	3m 42s
build-environment (heltecv2demo)	3m 46s
build-environment (heltecv3demo)	4m 21s
build-environment (lilygo-tdisplay-s3-demo)	3m 44s
build-environment (ledstrip)	3m 55s
build-environment (ledstrip_feather)	3m 53s
build-environment (ledstrip_feather_hexagon)	3m 50s
build-environment (ledstrip_feather_wrover)	4m 10s
build-environment (ledstriplite)	3m 35s
build-environment (ledstrip_pico)	3m 45s
build-environment (spectrum)	4m 22s
build-environment (spectrumstack)	4m 40s
build-environment (spectrumlite)	4m 5s
build-environment (spectrum_wrover_kit)	4m 11s
build-environment (mesmerizer)	3m 51s
build-environment (mesmerizer_lolin)	4m 41s
build-environment (laserline)	4m 24s
build-environment (lantern)	3m 46s
build-environment (chieftain)	3m 34s
build-environment (umbrella)	3m 31s
build-environment (generic)	3m 38s
build-environment (panlee)	3m 49s
build-environment (ttgo)	3m 31s
build-environment (xmastrees)	4m 24s
build-environment (insulators)	4m 20s
build-environment (magicmirror)	4m 33s
build-environment (atomlight)	3m 22s
build-environment (fanset)	4m 45s
build-environment (cube)	3m 46s
	2h 6m 52s

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