inconsistent Capybara test failures -- debugging

[jywarren]

Getting this inconsistent test failure -

=====================================[Screenshot]: tmp/screenshots/failures_test_note:_should_not_list_spam_replied_comment_to_registered_user.png
ERROR CommentTest#test_note:_should_not_list_spam_replied_comment_to_registered_user (319.77s)
Minitest::UnexpectedError:         Capybara::ElementNotFound: Unable to find css ".nav-link.loginToggle"
            test/comment_system_tests/comment_test.rb:651:in `block (2 levels) in <class:CommentTest>'

@TildaDares in #11137 (comment) :

@jywarren The test seems to be passing now but we can still try the suggestion in this article https://medium.com/@yuliaoletskaya/capybara-inconsistent-click-behavior-and-flickering-tests-f50b5fae8ab2

Good idea, opening this in a unique issue to try.

[jywarren]

Got another identical one at https://github.com/publiclab/plots2/runs/6884401631?check_suite_focus=true#step:9:134 in #11190

=====================================[Screenshot]: tmp/screenshots/failures_test_note:_should_not_list_spam_replied_comment_to_registered_user.png
ERROR CommentTest#test_note:_should_not_list_spam_replied_comment_to_registered_user (314.14s)
Minitest::UnexpectedError:         Capybara::ElementNotFound: Unable to find css ".nav-link.loginToggle"
            test/comment_system_tests/comment_test.rb:651:in `block (2 levels) in <class:CommentTest>'

[jywarren]

ERROR CommentTest#test_note:_should_not_list_spam_replied_comment_to_registered_user (337.51s)
Minitest::UnexpectedError:         Capybara::ElementNotFound: Unable to find css ".nav-link.loginToggle"
            test/comment_system_tests/comment_test.rb:651:in `block (2 levels) in <class:CommentTest>'

in #11255