I’m sure this was just an oversight in the initial design, but it would be really nice if you could provide us with 3x3, 5x5 and 7x7 particle flipbooks.
There are 3rd party asset packs provided for unity and unreal that would be compatible with roblox if it was not for this limitation.
Dynamic would even be better. I made spritesheets that use a lua implementation, and was excited to use them in the new flipbooks features, but sad when I realized that I couldn’t.
I think it’s an intentional limitation rather than an oversight, ref the section “About those Flipbook Limitations” in Animated Particles with the Particle Flipbooks Beta
This is already planned, but was not included in this initial release to get it into our hands faster.