>>3925509basically, Oliver will not use the vocaloid engine but a seperate engine designed by the company who currently owns him due to licensing fees to export vocal *banks* over to the vocaloid engine is expensive (it's why even though kasane teto is extremely popular, she doesn't have an official vocaloid release since the cost of making her sound high quality and similar to her UTAU version was considered not worth it)
Anyone who buys the voice bank of Oliver owns the license to use him for their songs, but to use him you have to have software compatible with him, and the compatible software is the program that Maghni AI is creating. This is the same for all vocaloids unless you buy a Vocaloid 4 which includes the vocaloid program along with a crypton created vocalbank (miku, luka, len, etc.). There are some special cases with licenses, like Fukase, but those are rarer.
To use Oliver in Vocaloid6 (or any yamaha vocaloid software that isn't his Vocaloid 3 voicebank) you will have to export the work you already created as a file in VocaTone's program so you can edit the work in the Vocaloid program