How to Check and Change Current Active Slot on Android [Fastboot

First you need the actual fastboot, 3 Then the correct command is: fastboot --set-active=a

I was able to fix this with fastboot --set-active=a followed immediately by fastboot flash boot and all the other partitions

fastboot get active slot switch slots ourselves using a Fastboot command Changing Android's Active Partition

fastboot set active slot Fastboot firmware, ZIP firmware is official from Xiaomi EU ROM, TWRP and 256GB512GB storage, no card slot Redmi Note 13 Pro+ was announced at