The latest version of YUMi UEFI is not working for me. I want to place Acronis True Image 2019 Acronis DIsk Director 12 on it, but neither gets detected by my motherboard. AFAIK, its suuposed to create a proper UEFI GPT Multiboot partition and a menu, from where I can select ISO's I installed on it.
I am also trying Easy2Boot, but it also sucks... RUFUS is the only software that works for creating boot CD's with 3rd party ISO's