On Drupal 10.2, the reason changes on page 'admin/config/regional/content-language'.
Testing /var/www/html/modules/custom/diff/tests/src/FunctionalJavascript
WebDriver\Exception\ElementNotVisible : element not interactable
/var/www/html/vendor/instaclick/php-webdriver/lib/WebDriver/Exception.php:198
/var/www/html/vendor/instaclick/php-webdriver/lib/WebDriver/AbstractWebDriver.php:169
/var/www/html/vendor/instaclick/php-webdriver/lib/WebDriver/AbstractWebDriver.php:240
/var/www/html/vendor/instaclick/php-webdriver/lib/WebDriver/Container.php:241
/var/www/html/vendor/behat/mink-selenium2-driver/src/Selenium2Driver.php:805
/var/www/html/vendor/behat/mink-selenium2-driver/src/Selenium2Driver.php:666
/var/www/html/core/tests/Drupal/FunctionalJavascriptTests/DrupalSelenium2Driver.php:168
/var/www/html/core/tests/Drupal/FunctionalJavascriptTests/DrupalSelenium2Driver.php:202
/var/www/html/core/tests/Drupal/FunctionalJavascriptTests/DrupalSelenium2Driver.php:179
/var/www/html/vendor/behat/mink/src/Element/NodeElement.php:105
/var/www/html/core/tests/Drupal/Tests/UiHelperTrait.php:96
/var/www/html/modules/custom/diff/tests/src/FunctionalJavascript/DiffLocaleTest.php:48
/var/www/html/vendor/phpunit/phpunit/src/Framework/TestResult.php:728
Active
1.0
Code
This module now supports 10.2 and the linked MR needs a rebase (probably because the problem is already fixed). If this is still an issue, feel free to re-open and rebase.