I am experiencing problems with breadcrumb trails inconsistently not displaying correctly. I am using the core breadcrumb module, without any others installed. (I did have Custom Breadcrumbs installed but have since uninstalled and removed it.)
I have links to nodes nested in parent items in the main menu like this: Home > Chapter > Topic > Subtopic. Most nodes are displaying the breadcrumbs like that, which is what I want. However, a few are displaying like this: Home > Subtopic (not showing the chapter and topic under which they are listed)
I believe I started getting this error when I changed the numerical weight of the menu items in structure > menu. I have since changed their depth, changed their parent menu item, flushed caches, nothing has worked. It is only a few nodes with the problem and they were originally working as expected. I cannot recreate this problem either. If I create new nodes they show the proper breadcrumb trail. The items in question are all as they should be in weight and parent menu item position they should be. If I install Custom Breadcrumbs I can force the breadcrumb trail to the desired state. Is there a table that I can flush in the database that will fix this problem? Is there a way to fix this without deleting the node and recreating it?
Edit: I found the problem. I have links to these nodes in two different menus on the same page. Drupal is using the other menu I created instead of the Main-Menu to make the breadcrumb trail.