Core context breaks Layout Library

Problem/Motivation

This is partial a bug report and also just asking what Core Context is used for.

I am trying to set up Layout Library and all was going well until trying to edit a layout and when trying to add a block, i get this error:

TypeError: Argument 1 passed to Drupal\core_context\EventSubscriber\SectionComponentRenderArray::getContextsFromSectionStorage() must implement interface Drupal\layout_builder\SectionStorageInterface, null given, called in E:\www\myssc\html\modules\contrib\core_context\src\EventSubscriber\SectionComponentRenderArray.php on line 89 in Drupal\core_context\EventSubscriber\SectionComponentRenderArray->getContextsFromSectionStorage() (line 112 of E:\www\myssc\html\modules\contrib\core_context\src\EventSubscriber\SectionComponentRenderArray.php)

This seems to have been reported in various forms over the past couple years and marked as fixed.

I see Mike Gifford reported it here: #3114416: Layout builder new layout for new content type, add body block to section gives ajax error where Will suggested this was fixed here: #3120388: EntityRouteProvider breaks default layouts. This fixed issue: #3116257: Fatal error when trying to edit entity-specific layout in Layout Builder (Argument 1 passed to SectionComponentRenderArray::getContextsFromSectionStorage() must implement interface SectionStorageInterface, null given) also seems to be related. Yet, the problem persists.

Disabling Core Context seems to be tied to a lot of WxT modules (which were mostly uninstalled when i disabled layout_builder_restrictions): layout_builder_restrictions, lightning_layout, lightning_landing_page, wxt_ext_layout, wxt_ext_landing_page, wxt_ext_page, wxt_ext_queue, wxt_ext_sitemap. Went ahead and disabled anyway and this fixes the issue.

A quick (very quick) run through of the site (yes, automated regression testing would be awesome) and nothing seems to be broken. So not sure what exactly the Core Context is needed for.

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes