User modeeves in Discord pointed out that he was not able to carve pumpkins with the mod installed.
I did not even know you could carve pumpkins in vanilla Minecraft.

Minecraft wiki on carved pumpkins:

A carved pumpkin is a carved version of a pumpkin that can be worn or used to spawn golems. It can be made by using shears on a pumpkin placed in the world.

Is there any other vanilla crop interactions that could be effected by this oversight?

Fixed in Quick Harvest-1.16.4-1.1.3.jar
https://www.curseforge.com/minecraft/mc-mods/quick-harvest/files/3164222