You’re probably right about including those frames and I have done exactly that in previous versions of this pack and existing versions of other packs. I try things slightly different some of the time so that I can see what works for people but I’m small so it’s slow going w/o much feedback. What you’re saying is very helpful and based on this alone, I’ll likely start to make sure even animated elements are represented somehow in the base tileset sheets.
Also totally understand about engine differences. I started out packaging this stuff in a loosely defined, generic sorta way (engine agnostic) but RPGmaker requires strict formatting and most of my early feedback was from RPGmaker users. As more of an RPGmaker user myself, it seemed to me that I could adhere to those formatting standards without causing any inconvenience to users who operate on less restrictive engines like Godot or Unity. Anything that lets you slice a spritesheet internally, basically. But that doesn’t mean I should neglect simple stuff that makes users like you have an easier time with my assets.
Please come back with any additional feedback or questions or issues in the future!