Set the writer to None when closing the adder so we don't try to delete it twice.
@@ -131,6 +131,7 @@ class ReverbAdder(base.Adder):
'Timeout (%d ms) exceeded when flushing the writer before '
'deleting it. Caught Reverb exception: %s', timeout_ms, str(e))
self.__writer.close()
+ self.__writer = None
@property
def _writer(self) -> reverb.TrajectoryWriter:
