Issue downloading modified save

[mr-andrej]

Hello hello, love what you're doing! I was just giving your fun little tool a spin but sadly without much success. Clicking the download button doesn't produce anything other than an error in the console.

file.store.ts:134 Uncaught TypeError: Cannot read properties of null (reading 'groups')
at downloadFile (file.store.ts:134:15)
at Be (action.ts:65:16)
at ObservableObject.key (action.ts:46:16)
at Object.He (react-dom.production.min.js:52:317)
at Qe (react-dom.production.min.js:52:471)
at react-dom.production.min.js:53:35
at jr (react-dom.production.min.js:100:68)
at Nr (react-dom.production.min.js:101:380)
at react-dom.production.min.js:113:65
at Ie (react-dom.production.min.js:292:189)

I might look into it myself later tonight but that's only if I manage to finish my work. Any ideas why I might be getting this issue?