Error while transfering [item] to the online item vault, please try again later. I figured the vault might be full, but when I retrieve an item from the vault and then try to place it back again, it gives the same error. Seeing as I can still retrieve items, it must mean there is still a connection going on between my profile and the server, but something is definitely going wrong. I've tried it multiple times on multiple days, but it always has the same issue, so it doesn't seem to be a server issue either.
Now, when I checked my profile I found something interesting that might be related, the website doesn't think I have the game on steam:

Even though it recognizes my purchase:

And sees I have items in the vault:

It's not a huge issue, but since the vault is a rather useful feature, I would like it to work. Any idea what might be causing this issue, or how I could resolve it?
Thanks!