Errors
SHUTDOWN_TIMEOUT
A Runtime worker operation did not settle within the shutdown bound.
What failed
A Runtime worker stopped future maintenance but its active tick or ownership acquisition did not settle before timeoutMs elapsed.
Why
The worker can bound how long shutdown waits, but it cannot physically cancel external work already started by a target or store adapter.
What still works
The resolved Runtime is disposed, future maintenance ticks remain stopped, and ownership is released after the active operation eventually settles.
Fix
Inspect the active target or store operation. Increase timeoutMs only when that operation is expected to finish safely within the larger bound.