I've had this issue for a week and finally fixed it!
You need a PC and need flash this modified TWRP using fastboot.
You can follow this guide to flash TWRP.
This was very annoying, I am not sure if this will work with Beta 8 or official OOS.
You need a PC and need flash this modified TWRP using fastboot.
You can follow this guide to flash TWRP.
This was very annoying, I am not sure if this will work with Beta 8 or official OOS.