4] Save failed with the following error: Joomla\Component \Finder\Administrator\Table\MapTable::_getNode(1, id) failed. · Issue #27913 · joomla/joomla-cms · GitHub
Joomla! Issue Tracker | Joomla! CMS #37507 - Menu Manager - Edit Article returns a 403 Error
Menu Components missing Joomla! Update - Joomla! Forum - community, help and support
Installing a component with two identical view names deletes menu items on install and root menu item on uninstall · Issue #19788 · joomla/joomla-cms · GitHub
4] Save failed with the following error: Joomla\Component \Finder\Administrator\Table\MapTable::_getNode(1, id) failed. · Issue #27913 · joomla/joomla-cms · GitHub
Joomla Help - Joomla Expert
4] Save failed with the following error: Joomla\Component \Finder\Administrator\Table\MapTable::_getNode(1, id) failed. · Issue #27913 · joomla/joomla-cms · GitHub
Joomla Extensions Missing From the Components Menu - Joomlashack
Solved: Save failed MenusTableMenu getNode Failed problem - Joomla Expert