TS3A44159: The leakage current from IO to VCC when power-off

Tool/software:

Hi expert,

My customer is testing TS3A44159 and found there is a leakage current from NC/NO signal line to V+(power supply). 

I noticed that there already are few discussions for this issue. The root cause is TS3A44159 has no power-off protection. I also noticed that we suggest move to TMUX1574 to solve it. (+) TS3A44159: Leakage from NO pin to NC, COM and VCC when board is not powered - Switches & multiplexers forum - Switches & multiplexers - TI E2E support forums

But customer board is fixed, can you help to check whether we have a p2p solution or work around to avoid this issue? Thanks!

Add schematics here, the VIO is 1.8V:

BRs,

Rannie