Forge Version: 1.12.2 - 14.23.5.2855
Mantle Version: Mantle-1.12-1.3.3.55.jar
Natura Version: natura-1.12.2-4.3.2.69.jar
Flourishing Foliage Version: flourishingfoliage-1.12.2-1.0.2.jar

Whenever I try to break a berry bush of any kind that is not fully grown the bush would be instantly replaced, similar to how it happens when the game lags, but there would be a dropped item. This is supposedly caused by FF's mechanic of regrowing broken leaves on trees. There were no issues with actual tree leaves. I may play around with it later to see the full extent of the bug.