Issue with crop()'s offsets (appear to be applying twice?)

[CajunAvenger]

A few weeks back, I had made a system to allow for dynamic leveler frames using the built-in crop() function. The idea was to use a script like crop(height:50, offset_y:100, offset_x:0, height:314) to get the bottom 50px of a 150px image, but instead a completely blank image was returned.

From testing with a few numbers, it appears it may be applying the offset, cropping, then applying the offset again, or possibly cropping it a second time based off the offset. Image with some console tests

I am currently working around this issue with a function that crops the image to the bottom of the wanted slice, flips it upside down, crops to the top of the wanted slice, then flips it back.