The bug
Occasionally when trying to manually craft Jack o'Lanterns, it comes up as uncraftable in the recipe book if you place a Carved Pumpkin in the crafting grid first.
How to reproduce:
Have at least 1x Torch and 1x Carved Pumpkin
Open Inventory
Place all (or single) carved pumpkin(s) in crafting grid
If successful, you should see Jack o'Lantern come up as Red in the recipe book.
If unsuccessful:Grab carved pumpkin(s) out of crafting grid and place back into grid.
If still unsuccessful, close your inventory and repeat steps 2 and 3. (Took me on average 7 attempts)
*.mp4 video attached
Theory:
The cause may be due to the original recipe requiring "minecraft:pumpkin" and not "minecraft:carved_pumpkin". This could be completely incorrect, as it's a wild guess.
I also tried to reproduce this glitch with the torch half of the recipe; no results, ergo the above theory.
I did not try this with other recipes.
May be similar to MC-207201
Edit History:
Anthony Cicinelli attached screenshots showing that Jack o'Lanterns aren't the only crafting recipe that this affects. Therefore, he also modified the title to reflect that.
Added dotpoint 4 to Theory.
Anyone may claim this bug report at will if there are new recipes needing to be added.
Attachments
Comments 7

Completely vanilla; no datapacks, no modpacks, etc.

I've attached some screenshots it doesn't affect just Jack o'Lanterns but potentially all crafting recipes. I've updated the summery to reflect that.
Thanks for taking your time to assist the post 🙂
I've attached a video that I'm creating a separate ticket for, but the reason I'm attaching it here is because what's happening in this bug is also happening in the video.
Please transfer ownership of this report to Jiingy
Do you have any data packs enabled?