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TS5A23157: Observing leakage in VCC power domain when input NC2 is driven before the supply for VCC pin is ON.

Part Number: TS5A23157
Other Parts Discussed in Thread: TMUX154E, TS5A23159

Tool/software:

We are observing leakage of about 1V at +3.3V_ALW(VCC) when input EC_UART0_TXD_DBG is provided to U127 (TS5A23157) before the +3.3V_ALW is powered ON. Is this expected behavior? I see note in the datasheet allowing control signals to be present without VCC, is it applicable for input NC/NO pins as well?