Shiinaecchigawarubyhoshinothefullanimat 2021 -

I should also consider if there's any known fan project by that name. I remember there was a fan mod called "TheFullanimat" that attempts to render RWBY in a full 2D animation style, which was in development around 2020-2021. That might be what the user is referring to. However, such projects are usually not officially supported and might be outdated now. The user might be asking for updates or information on that specific fan project from 2021.