You'll notice
Useful2 Signal1
When a live subscription fails to start, the error you see is now the actual failure.
What's wrong with this entry?
Anonymous. No account, no email.
What
An error handler in the live-subscription arming path reported an outer captured value instead of the exception it had just caught, so the real error was lost. It now passes the caught error.
Evidence
armLiveSubscription: late-park fall-through lost its park
Strings lifted out of the shipped bundle, so the claim above can be checked against them.