I followed the guide up to the stitching part, then I just hoped for the best (hoping it was just a visual glitch). I updated my video card driver. I’m up to date in Windows 10. Please help.
I can stitch your videos together, although the stitching isn’t perfect. That is because your videos were recorded in Super View mode, not Wide mode for which the calibration was done. The strange distortion you saw was likely caused by the separator (the red vertical line) not being positioned properly in the middle.