Minecraft Version: 1.12.2
Inventory Tweaks Version: 1.64 dev

If I assign the Sort hotkey to "Ctrl + R" in-game, hotkey functions on all iterations of " * + R," including regular "R." It doesn't matter what hotkey Sort is assigned, Sort will take up the entire hotkey and possible modifiers with it (with the exception of middle-click functionality being a separate option).

Easy work-arounds for now include setting sort to its own hotkey somewhat out of the way, or unbinding the hotkey and just using middle-click sorting.