fastboot revision skips fastbootd on update, leading to bootloop

fastboot_ error_ failed to identify current slot   Dan fastboot_ error_ failed to identify current slot

Trying to flash a brand new Pixel 3 , but something looks wrong Some error messages and apparently stuck in fastboot

I have total 3 slots but only using 1 SSD of 256 gb and 1 HDD of 1 TB , the slot which I'm not using can accommodate another SSD I guess  It can be very useful to know if partition slot A or slot B is currently active and you can learn

cosmic slot casino current load of all the connected devices • Before cleaning the computer, make sure it is disconnected from any external power supplies ( ACDC adapter When there is a problem with the SATA Port, BIOS may fail to detect the SSD 2 slot but does not support NVMe, is it due to hardware or