[Snake]

When Guns are mutated into Bows (I.E, Yin/Yang for example), they do not carry over the Rounds property of firing multiple rounds, which is a vestige of a previous balance fix regarding them and how Power was calculated, which got changed.

However, you see that if you mutate a Gun into any other type, it will keep its multi-rounds property (I.E, Spirit Hunter or Ghost Smoke).

Which one is a bug, which one is not? Preferrably, make mutated Bowguns able to fire all their rounds, pls, since it's more flashy like that.

[Neus]

This is not a bug. Mutating a weapon changes the basic attack skill type to the Bow's, which results in a difference of range (for other weapons). The reason this isn't the case for the other weapon types is because they don't actually alter the basic attack skill type from the gun's (which uses rounds).