I have multiple Datapacks on my server and on a single player test world, and while they have worked in every 1.16 snapshot up to 20w15a, I recently discovered that they did not seem to have any affect on the world in 20w17a. Custom crafting recipes in several of the packs did not work and did not appear when using the /recipes command. Using the /datapacks list command shows all datapacks as being enabled, buy if this were actually the case I would be able to use the custom crafting recipes and I would see the functions and triggers with /function and /trigger. Updating the pack format in the pack.mcmeta file of one of the recipe datapacks had no effect, and the datapacks stayed inactive.

Attached are three of the multiple data packs I have. I only included three because I am using 18 and most of them are ones I downloaded from Planet Minecraft and I dont want to redistribute them without the consent of the pack creators. The three are ones I have made for personal use.