Grav 1.7.13 Fatal error when copying (duplicate) a page in admin

[securiteinfo]

Got 1.7.13 with all plugins updated.
Here are the logs

grav.CRITICAL: Argument 1 passed to Grav\Common\Data\Blueprint::validate() must be of the type array, null given, called in /user/plugins/flex-objects/classes/Admin/AdminController.php on line 556

• Trace: #0 /user/plugins/flex-objects/classes/Admin/AdminController.php(556): Grav\Common\Data\Blueprint->validate(NULL)
  Update README.md #1 /user/plugins/flex-objects/classes/Admin/AdminController.php(1301): Grav\Plugin\FlexObjects\Admin\AdminController->taskCopy()
  Fix: error 500 IIS #2 /user/plugins/flex-objects/flex-objects.php(307): Grav\Plugin\FlexObjects\Admin\AdminController->execute()
  Fixed typos/CS #3 /vendor/symfony/event-dispatcher/EventDispatcher.php(264): Grav\Plugin\FlexObjectsPlugin->onAdminPageInitialized(Object(RocketTheme\Toolbox\Event\Event), 'onPageInitializ...', Object(Symfony\Component\EventDispatcher\EventDispatcher))
  Add and start using DI container #4 /vendor/symfony/event-dispatcher/EventDispatcher.php(239): Symfony\Component\EventDispatcher\EventDispatcher->doDispatch(Array, 'onPageInitializ...', Object(RocketTheme\Toolbox\Event\Event))
  Implement unified Asset Management & Pipeline Mechanism #5 /vendor/symfony/event-dispatcher/EventDispatcher.php(73): Symfony\Component\EventDispatcher\EventDispatcher->callListeners(Array, 'onPageInitializ...', Object(RocketTheme\Toolbox\Event\Event))
  Add a meta generator tag to themes #6 /system/src/Grav/Common/Grav.php(556): Symfony\Component\EventDispatcher\EventDispatcher->dispatch(Object(RocketTheme\Toolbox\Event\Event), 'onPageInitializ...')
  Additional URI filtering #7 /system/src/Grav/Common/Processors/PagesProcessor.php(44): Grav\Common\Grav->fireEvent('onPageInitializ...', Object(RocketTheme\Toolbox\Event\Event))
  Add support file stream wrappers #8 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\PagesProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Support multiple environment configurations #9 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Support media directly in markdown syntax #10 /system/src/Grav/Common/Processors/TwigProcessor.php(38): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Twig dynamic cache plugin #11 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\TwigProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Browser reload plugin #12 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Youtube embed plugin #13 /system/src/Grav/Common/Processors/AssetsProcessor.php(39): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Compile Error #14 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\AssetsProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Routing not working with ~username type URLs #15 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Default theme doesn't render properly with Galaxy Note #16 /system/src/Grav/Common/Processors/SchedulerProcessor.php(40): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Use Symfony EventDispatcher #17 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\SchedulerProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Refactor events to use Symfony Event Dispatcher + new event naming #18 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Full PSR-4 autoloading of core Grav classes #19 /system/src/Grav/Common/Processors/BackupsProcessor.php(39): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  bin/grav install doesn't work #20 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\BackupsProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Plans For Keeping Plug-ins Current? #21 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  404 error  #22 /system/src/Grav/Common/Processors/TasksProcessor.php(69): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Markdown only? #23 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\TasksProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Blog Comments? #24 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Parse error when bin/grav install #25 /user/plugins/admin/classes/plugin/Router.php(65): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  responsive grid problem with ice dragon browser (a clone of firefox) #26 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Plugin\Admin\Router->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Install issue #27 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Will RocketThemes Develop On Grav? #28 /system/src/Grav/Common/Processors/RequestProcessor.php(63): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Dropbox plugin #29 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\RequestProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  What Can The Paginator Paginate? #30 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Debugger in development mode #31 /system/src/Grav/Common/Processors/ThemesProcessor.php(38): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Composer dependencies in plugins #32 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\ThemesProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Windows problems #33 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Using Grav with Google App Engine #34 /system/src/Grav/Common/Processors/PluginsProcessor.php(39): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Taxonomies Within Taxonomies? #35 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\PluginsProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Syntax error immediately after install #36 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Update Markdown.php #37 /system/src/Grav/Common/Processors/InitializeProcessor.php(130): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Changes made to markdown file isn't showing up in the browser. #38 /system/src/Grav/Common/Debugger.php(546): Grav\Common\Processors\InitializeProcessor::Grav\Common\Processors{closure}()
  Submenus possible? #39 /system/src/Grav/Common/Processors/InitializeProcessor.php(131): Grav\Common\Debugger->profile(Object(Closure))
  wordpress import ? #40 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(50): Grav\Common\Processors\InitializeProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler))
  Content handling - Backend? #41 /system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Alternative Templating engines #42 /system/src/Grav/Common/Grav.php(295): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest))
  Some tiny fixes in Debugger #43 /index.php(58): Grav\Common\Grav->process()
  Append template render to page variables #44 {main} [] []

Any suggestion ?

[mahagr]

Fixed in trilbymedia/grav-plugin-flex-objects@ad6cf54

Though.. I think this is an issue where you just updated and JS hasn't been reloaded. Try to force reload the page and you should see a new modal when you copy the page asking you to enter new title and folder.

[securiteinfo]

Resolved in Grav v1.7.14 and Admin v1.10.14.
Thank you !