First thing I see, is that it’s scaling the design down when it uploads. My recommendation here is to design everything in a 12x20" artboard. This aspect ratio will be identified behind the scenes when you upload a file and scale things correctly (the SVG you uploaded uses no specified units, so it’s using pixels, and Illustrator uses a different value for pixels per inch than your browser does).
Second, it looks like it was maybe saved at 2 decimal places. This design is very, very small - where hundredths of an inch could make a difference. When you save as from Illustrator, I would use 3 or 4 decimal places.
Here is your same design that I saved back out using 4 decimal places. It seems to load appropriately for me.
When you get way zoomed in while drawing stuff, it’s easy to lose track of scale and how much room you really have. I tend to use a stroke of .008” to simulate how much material is going to be removed, if paths will intersect, etc.
When you Save As SVG, click the More Options and set up your saves to look like this:
Also, the metadata was missing from your file, so I’m guessing you exported rather than saved. The official recommendation is to do Save As or Save a Copy.
I use export all the time and I haven’t broken anything yet, but you’ll need to go into the export options in Illustrator and set up the appropriate boxes.
glad it’s working now. i know i was using it at least back in the beginning of November last year because that’s the one time it was a problem. when i was copy/pasting a big family crest file that was really complicated and it ran into some issues. other than that, it’s worked perfectly for everything else.