As title, the enchant 'Multishot' effect is some arrows launching at once, but I can't see that effect with draconic bow.

I tried it with the draconic bow and wyvern bow and the same happened to me. Maybe it happens because the bow has different shooting modes?

I suspect this is just because there are a lot of differences between my bows and more vanilla type bows. But my bows will hopefully be getting an upgrade before the next release that should make up for this.