Bandai literally showed off a full-color prototype of Figuarts of Cure Miracle from Maho Girls Precure back in 2017 and never released her or the other characters from that season. And it wasn't like they decided to stop making Precure Figuarts, they just skipped ahead to releasing Figuarts from the season after Maho Girls instead.
(Then the Precure Figuarts line ended while they were releasing Hugtto ones even though they showed off Cure Ange, the sole character they didn't release, alongside the other four characters who were all released, again in full color prototype form).
I honestly don't understand why companies don't just release these things to recoup the costs of investment tbh.