My browser / operating system: Windows NT 10.0, Firefox 135.0, No Flash version detected

I tried to import an .svg I drew in Inkscape. The canvas is set to 480x360. When I imported the costume, it immediately crashed, so I downloaded the file to see if I could upload it in Scratch 3 offline instead. Somehow, the project saved with the costume imported. When I click on the sprite and navigate to costumes, it crashes offline and online, so I can't even delete the costume. I also tried simplifying the .svg, unionizing paths and ungrouping things like I've read in other threads, but I can't see that it worked. Granted, I also can't open the costumes tab at all without it crashing, so it's hard to say.

I've tried clearing my cache, cookies, and history, uninstalling and reinstalling Scratch offline, logging in and out, and restarting my PC, but so far nothing has helped.

Can I fix this, or is my project just cooked?

You can’t import SVG files from Inkscape into scratch. Inkscape uses a special version of SVG exclusive to it