Just signed up for Obsidian Sync; works great on my MacOS and iPadOS devices; cannot get iOS 17.1.1 to sync all 12.1K notes. Stuck at note/file 11,846 … the entire iOS sync has been running for three days - and making the iPhone really hot!
Check the Sync log to see if you can find what file it’s stuck on, and write it down. Restart Obsidian on the phone. If that doesn’t help, temporarily remove the file from the vault and try again.
That’s what mine is doing too. I’m not sure if it matters that I’m on the test version. I left it overnight and the screen just went black…not the phone screen, the Obsidian app.