Failure in qa/specs/features/ee/browser_ui/4_verify/system_cancels_merge_request_in_merge_trains_spec.rb:85

Summary

Failure in https://ops.gitlab.net/gitlab-org/quality/staging/-/jobs/3022760

Similar production failure in new_discussion_not_dropping_merge_trains_mr_spec

Stack trace

2) Verify Merge train when system cancels a merge request creates a TODO task
     Failure/Error: show.wait_until(reload: false) { show.has_content? 'started a merge train' }
     
     QA::Support::Repeater::WaitExceededError:
       Wait condition not met after 60 seconds
     # ./qa/support/repeater.rb:44:in `repeat_until'
     # ./qa/support/waiter.rb:23:in `wait_until'
     # ./qa/page/base.rb:55:in `wait_until'
     # ./qa/specs/features/ee/browser_ui/4_verify/system_cancels_merge_request_in_merge_trains_spec.rb:85:in `block (4 levels) in <module:QA>'
     # ./qa/scenario/actable.rb:16:in `perform'
     # ./qa/specs/features/ee/browser_ui/4_verify/system_cancels_merge_request_in_merge_trains_spec.rb:81:in `block (3 levels) in <module:QA>'

Also in new_discussion_not_dropping_merge_trains_mr_spec

Verify In merge trains new thread discussion does not drop MR
     Failure/Error:
       show.wait_until(reload: false) do
         show.has_content? 'started a merge train'
       end
     
     QA::Support::Repeater::WaitExceededError:
       Wait condition not met after 60 seconds
     # ./qa/support/repeater.rb:44:in `repeat_until'
     # ./qa/support/waiter.rb:23:in `wait_until'
     # ./qa/page/base.rb:55:in `wait_until'
     # ./qa/specs/features/ee/browser_ui/4_verify/new_discussion_not_dropping_merge_trains_mr_spec.rb:93:in `block in start_discussion'
     # ./qa/scenario/actable.rb:16:in `perform'
     # ./qa/specs/features/ee/browser_ui/4_verify/new_discussion_not_dropping_merge_trains_mr_spec.rb:92:in `start_discussion'
     # ./qa/specs/features/ee/browser_ui/4_verify/new_discussion_not_dropping_merge_trains_mr_spec.rb:59:in `block (4 levels) in <module:QA>'
     # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:123:in `block in run'
     # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:110:in `loop'
     # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:110:in `run'
     # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec_ext/rspec_ext.rb:12:in `run_with_retry'
     # ./spec/spec_helper.rb:78:in `block (2 levels) in <top (required)>'
     # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:123:in `block in run'
     # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:110:in `loop'
     # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:110:in `run'
     # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec_ext/rspec_ext.rb:12:in `run_with_retry'
     # /usr/local/bundle/gems/rspec-retry-0.6.1/lib/rspec/retry.rb:37:in `block (2 levels) in setup'
     # ./qa/specs/runner.rb:73:in `perform'
     # ./qa/scenario/template.rb:10:in `block in perform'
     # ./qa/scenario/template.rb:8:in `tap'
     # ./qa/scenario/template.rb:8:in `perform'
     # ./qa/scenario/template.rb:35:in `perform'
     # ./qa/scenario/template.rb:10:in `block in perform'
     # ./qa/scenario/template.rb:8:in `tap'
     # ./qa/scenario/template.rb:8:in `perform'
     # ./qa/scenario/bootable.rb:28:in `launch!'

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Possible fixes