Test failure: "Test Dead Letter Queue using pipelines.yml with multiple pipelines behaves like it can send 1000 documents to and index from the dlq should index all documents"

[jsvd]

11:51:00     Failures:
11:51:00 
11:51:00       1) Test Dead Letter Queue using pipelines.yml with multiple pipelines behaves like it can send 1000 documents to and index from the dlq should index all documents
11:51:00          Failure/Error: Unable to find matching line from backtrace
11:51:00          
11:51:00            expected: 1000
11:51:00                 got: 962
11:51:00          
11:51:00            (compared using ==)
11:51:00          Shared Example Group: "it can send 1000 documents to and index from the dlq" called from ./specs/dlq_spec.rb:93
11:51:00 
11:51:00     Finished in 20 minutes 33 seconds (files took 7.85 seconds to load)
11:51:00     25 examples, 1 failure, 1 pending
11:51:00 
11:51:00     Failed examples:
11:51:00 
11:51:00     rspec './specs/dlq_spec.rb[1:1:1:1:1]' # Test Dead Letter Queue using pipelines.yml with multiple pipelines behaves like it can send 1000 documents to and index from the dlq should index all documents
11:51:00 
11:51:00     Randomized with seed 46841