Did Kali Linux USB Persistence Change?

I have made a persistent USB running Kali Linux in the past, and I remember in the boot menu, there was an option for something along the lines of "Live Persistent USB", but now in the boot menu,any USB options are gone and replaced by "Live System Persistence" for example. When I followed the steps and ran the commands in order to make the USB persistent, nothing saved and it does not work. Did the process change? Did I use the wrong ISO? I am so lost.

USB: 64GB

ISO: kali-linux-2018.4-amd64.iso