My guess is that the anvil_extras Published branch (in the Anvil cloud repo, which is not directly visible from GitHub for anvil_extras) inadvertently got set to one of the other fix patches @stucork pushed 5 hours ago, one that was pre-non_blocking: v2.3.1 or v2.2.4, that is.
The context:
General PSA: If you have Anvil apps in production, it’s a good idea to set the notification level of the Bug Reports section this forum to “Normal” or higher so you at least see them in your feed when coming to the forum to report something, because otherwise I think it defaults to Muted: