Big Sur won’t boot from installer USB while external (target) drive is connected.

Hey all! I am trying to install Big Sur on my Asus ROG Zephyrus for the first time and I’m having a major issue. I have windows installed on my internal drive as it is my daily driver so I am trying to install macOS on an external drive. However, when trying to boot off of the USB I set up with OC 0.8.6, it will not boot properly. Without the drive connected, it will boot to the install macOS screen without a hitch. The drive will also never show as connected if I connect it after it has booted. Does anyone have any ideas as to what I can do to fix this?

CPU: Intel i7 10750H

GPU: NVidia GeForce RTX 2070

RAM: 16gb

Exact laptop model: ROG Zephyrus M15

submitted by /u/TheMeerkatt
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