Issues with APPCSXCAD Preview: Components offset

[UnscathedCopper]

-Simulation Settings

-APPCSXCAD Preview

I have an issue regarding the simulation process, specifically getting parts to align correctly for the final simulation results as seen by the simulation preview in APPCSXCAD I've attached. I was following the process step by step from the following youtube video here: https://youtu.be/yrl2gRjtrek?si=ayfDJgxNQ6ltukIj
Worse than just cosmetic issues, the simulation will create an empy simulation output file and the terminal just gets stuck "Operator::InitDataStorage(): Storing epsR material data...
Operator::InitDataStorage(): Storing muR material data... " loop until all my computer memory goes into computing what is most definitely a failed simulation.

Some more context for my situation: The green box that can be seen in the lower right hand corner of the first image I attached was intended to be a box of Air, that, to my understanding, was necessary as a sort of bounding box that the simulation would inhabit. At first I figured that perhaps it could be a coordinate issue as seen by the set of images I've shown below, however it seems that the Field Upper, Lower, and Middle boxes that would be used as H-field probes share the exact same coordinate origin as the Air box. The Upper, Lower, and Middle boxes show up perfectly aligned in the upper left hand corner of the first image with the Copper traces, FR4, and all the other Port components that I included in the simulation. It seems that this issue only affected the Air box, which strangely enough was the very same component I copied and pasted in FreeCad to create the Upper, Lower, and Middle boxes that seem unaffected by this alignment issue. I've also tried destroying and making a new air box but I keep getting the same preview, with the box in the same place, completely offset from the rest of the model.

My final though is that the origin for the Copper and FR4 objects being so offset could be an artifact of my original KiCad model, as you can see in the final image I've attached, but I'm unsure since I've tried importing other KiCad models using the same FreeCad to OpenEMS importing tool and I get the same offset origin for the generated components. Additionally, if that is an issue, why didn't it affect the guy in the youtube video since he used the same importing tool?

I'm at a loss, I've redone the entire process according to the youtube video (to the best of my ability) exactly, and I don't see why my process should generate such a drastically different result.

-Copper origin

-Air box origin

-KiCad origin. Pay no mind to the absurdity of the PCB design, this was intended as a case study for signal interference

Any guidance that can be thrown my way would be much appreciated, this seems like such a neat tool and compared to something like ElmerFEM, the learning curve is so much nicer, so I really want to get this to work for me. Anything opensource is a net positive in my book, so I'm willing to put in the extra effort and hopefully whoever else reads this discussion gets some value out of this too.

Thanks again for all your help and hard work!