It happens several times and my elytras are working right after, so no, they didn't break
confirmed for 1.14
confirmed for 18w44a
And have you even tested before marking this as invalid? it won't work either even with the recipes in the folder "Minecraft"
So why some of these are working then?
that's not the same block as in MC-126585 so it's not a duplicate...
maybe a wai, but not a duplicate (and since coral and coral fans aren't solid blocks, they aren't technically touching water, so that's what I wasn't sure if it was wai)
work as intended
very weird, this happens randomly, the two screenshots are done on the same save, there is no error message in the launcher and the two files are next to each other in the datapack... (on another save it was the bark that wasn't crafted correctly)
just happened to me in 1.13pre-2 when I started the game, two music where playing in the title screen...
can confirm for 20w18a