Looks like they have a fix for it, but won’t arrive till next week. Hang in there.
“In the other half of reported cases for this issue, things are just taking longer than expected for items from the original Overwatch to transfer and populate in Overwatch 2. In all cases, no player data has been wiped or lost. We have a client-side fix for this that cannot be deployed until next week, so we are exploring server-side fixes and will provide updates as more information becomes available.”