Thread:MistofMists/@comment-24577221-20190306052144/@comment-27661991-20190313010720

I don't think I've ever had it happen, but the typical combinations where you would use a 4-element and a 2-element are outside the realm of the Natural Monsters, so I can't say I've tried them very often.

Only takes a single instance of this happening to at least prove that it does happen - with further work that would be needed if that applies to all 4+N combinations, or only specific ones.

E.g. in the case of your first link, Deedge+Pano would be Epic Yool (when available, and successful). So it might be that such new combinations *can* fail to the 4-element (and maybe then only while the resulting Monster is available).

( the second link appears to be unrelated )