I found a solution on Reddit which worked for me.
Log into the game, disconnect from the internet, reconnect, go back to Unbound and make sure it's in offline mode, and then click to go back online. It should reinstall all the inventory correctly this time. At least, that's how I fixed it. Got the issue a few days ago and that's how it stopped.
EA Staff (Retired)Hey @Usagi-034
It looks like you're getting different error messages when trying to play unbound.
For Error Code F03, you can try the following:
For information check out larger threads, and if this continues provide the requested information.
Thanks and hope to catch you in free roam!
Tried that workaround with the DLCs, didn't work. It just keeps syncing until 14/16 (literally skipping to the intro instead of getting to 15/16). Actually, the closest I got was 15/16, but never 16/16. That Ultimate Edition Upgrade is way more broken than I thought, killing my save which worked for so long before Vol.9 came out. Tried even power cycling the console and reinstalling the base game and every DLC, no effect. Oh well, instead of enjoying the new update, I guess I'll just uninstall it all and never touch it again instead.
(Played on Xbox Series X, on wired connection, GT the same as my username here)
This is how it keeps going 99.9% of the time (sorry for the quality, had to use my phone because the Xbox doesn't capture the inventory sync for whatever reason): https://1drv.ms/v/c/a629c2c70943a2e0/EXkVCNc3Eq5IlgGiv3PkvvABMoGMTdE8u0n3k3ltbapzWg
