This was later found to be the result of the propellant sloshing more than expected, uncovering a fuel sensor.
ðɪs wʌz lˈeɪɾɚ fˈaʊnd təbi ðə ɹɪzˈʌlt ʌvðə pɹəpˈɛlənt slˈɑːʃɪŋ mˈoːɹ ðɐn ɛkspˈɛktᵻd, ʌŋkˈʌvɚɹɪŋ ɐ fjˈuːəl sˈɛnsɚ.