I was in a similar position yesterday. The host site appears to be in flux pending the official arrival of AC23. You may not like the answer but there appears to be a manual upload option which I had to use by saving a local copy and transferring that file. If you haven't been to the host site recently
https://bimx.graphisoft.com it may be worth a visit to keep an eye on what is happening.
Apple iMac macOS Monterey / AC25UKI (most recent builds)