Why doesn't pdoSitemap output the collection resource and its child resources?

Question

MODX

Created sitemap.xml using pdoSitemap as in instructions itchief.ru/lessons/modx-revo/modx-revo-creating-sitemap-xml
The collection resource itself is published and its child resources too. But pdoSitemap stubbornly ignores their output.

Resources 1 and 3 are ordinary documents - they are output to the xml file, but the resource with ID 6 and its child resources are ignored.
What can be wrong?

Answer 1

Got it! The output in pdoSitemap is affected by the "Searchable" resource option. If a resource is not available for search, then it is not displayed in the sitemap.