Sections are not displayed in the shopify-CLI preview

Technical Q&A

Topic summary

Issue: In Shopify CLI preview, only the header and footer render; all middle sections are missing, and the header and footer appear directly attached with no spacing.

Context: Theme is Debut v17.13.0. The storefront previously displayed normally. Downloading the theme from the store and reapplying it did not resolve the problem.

Recent update: The user now sees errors indicating invalid block types in presets, e.g., “Preset ‘Default’ block ‘footer-0/footer-1’ type is invalid; type must be defined in the schema,” and similar for ‘link_list’, ‘text’, and ‘newsletter’ in the ‘Light’ preset. Despite these errors, at one point a section did display. The user is upgrading the Shopify tool (CLI) and asks if this could be related.

Technical note: The errors suggest the theme’s block types don’t match or aren’t defined in the section schema (the JSON schema that declares allowed blocks/types for sections), which can cause sections not to render.

Request: Guidance on how to fix the schema/type mismatch and whether the Shopify CLI upgrade is a factor.

Status: No solution or confirmations yet; issue remains open.

Summarized with AI on February 17. AI used: gpt-5.
1

Here is the theme I am customizing.

Debut
Version 17.13.0

Up until now, I was able to display the page normally.

But suddenly, only the header and footer are displayed, and the sections in between are not displayed at all.

The header and footer are displayed attached to each other, with no space between them.

I downloaded the theme from the store and tried to fix the problem, but it has not improved.

I would appreciate it if you could tell me how to fix it.

Thank you in advance.

I am now getting the following error.

But I was able to display the section.

I am upgrading the shopify tool, is that related?

Preset 'Default' ブロック「footer-0」のタイプの値は無効です。タイプはスキーマで定義する必要があります。
  Preset 'Default' ブロック「footer-1」のタイプの値は無効です。タイプはスキーマで定義する必要があります。
  Preset 'Light' ブロック「link_list」のタイプの値は無効です。タイプはスキーマで定義する必要があります。
  Preset 'Light' ブロック「text」のタイプの値は無効です。タイプはスキーマで定義する必要があります。
  Preset 'Light' ブロック「newsletter」のタイプの値は無効です。タイプはスキーマで定義する必要があります。