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CC256xQFN-EM Rev 1.2B Issue

Other Parts Discussed in Thread: SN74AVC4T774
Hello,
I'm working with CC256xQFN-EM Rev 1.2B, and would like to connect it to my STM32F40x EVB. My platform works with 3.3V I/O, so I need to use Level Shifters on CC256xQFN-EM (SN74AVC4T774's).
Following several test with the CC256xQFN-EM, I realized that there is a short between VIO_HOST and VDD_1V8_LS nets (I confirmed it by removing R9). This causes CC256xQFN-EM VDD 1.8V signal to be 3.3V. I assumed this issue might be related to specific board, but I observed the same phenomenon with another CC256xQFN-EM board.
Could you please elaborate on the above phenomenon?
Thanks,
Daniel