I was worried that upgrading to Sonoma would cause issues but I am on Ventura still and the issue persists. That does mean it's across different browsers! I have reported it to Support
Sorry to revive this old thread but my webclipper has stopped working since the syncing errors in the last few days. The app is loading back to its usual pace but my webclipper keeps asking me to login again and then it doesn't ever get past the login page.
App client seems to be working with it now (even with the wrong command) but the web client still isn't working and is loading. Just a wait and watch approach I think, nothing else we can really do from the sounds of it.
Strangely the web client won't even refresh, it's just loading forever when I tried to press refresh. My app client seems to be syncing for now after control+command+R (which I presume is the same shortcut for Mac but I'm not sure...!)
I think the loading of notes has sped up with whatever Evernote is doing in the background but the attachments staying as 'Untitled Attachments' remains a problem for me. Reported it to Support very early on and still nothing, unfortunately!
I have the same issues - I find that if I leave it for long enough, it will show the attachment again - but this is super variable (sometimes it never comes back).
The Evernote Web app sometimes has the updated version faster than the app version.