Total data loss

After navigating to gpx.studio today, I noticed that the over 100 files that I had stored have been lost. I didn't manually delete any data from my browser recently. I've been using gpx.studio in Safari for a year or more with no data loss. It's possible that this was a result of upgrading to macOS 26, although I'm not sure if this was the first time I used gpx.studio after upgrading.