Bug reproduction steps:
1. Click on my submitted deck's portrait in the "Starter Deck Duel" screen.
2. Change decks and click "Submit Deck".
3. Click "Play".
4. Game hangs indefinitely on "Waiting for Server" (I've waited up to 5 minutes and it's still stuck, while it normally takes only a few seconds to start a match).

Platform: This is on a Lenovo Windows 11 PC laptop (IdeaPad, 1.2 GHz processor, 8GB RAM, 90 of 238 GB free) connecting directly to Arena (no Steam).

Workaround: Step 4 ALWAYS happens if I go immediately from step 2 to step 3; but it NEVER happens, and the match instead proceeds fine, if I go back to the Arena main menu and then back to "Starter Deck Duel" between steps 2 and 3.