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Common issues and fixes

Last updated on Jun 24, 2026

Common issues and fixes

A short list of the things merchants ask about most when setting up Reign. Each entry tells you what you are seeing and what to change in the theme editor. Work from the symptom that matches your screen. For how sections, blocks, and presets fit together, see Sections, blocks, and groups.

A block reads "Block not found"

This message appears in the editor preview where a block should render. It usually means the block was left in a state the section cannot draw, most often a block that was partly removed or one that no longer fits its parent.

What to try, in order:

  1. Reload the editor. A stale editor state often shows this message after a theme update or a quick edit even though the live store renders fine, and reloading clears it most of the time.
  2. If it persists, open the section that holds the block and check its block list. If the affected block is empty or out of place, remove it, save, then add a fresh one with Add block and set it up again.
  3. If the message appears across many sections at once, it is almost always the stale-state case in step 1, not a problem with each block. Reload and recheck before editing blocks one by one.

A section looks empty

A section can render with nothing visible for a few reasons. Check these:

  • It has no content blocks yet. Many Reign sections are empty containers until you add blocks (Sections, blocks, and groups explains why). Open the section and use Add block to add the content it expects (a heading, an image, a product, and so on).
  • Its content points at nothing. A section tied to a collection, a blog, or a product shows nothing when that source is empty or unset. Open the section settings and pick a collection or blog that has items in it.
  • It is hidden. Each section has a visibility toggle (the eye icon in the section list). If the section name is dimmed, click the eye to show it again.

If the section shows placeholder shapes instead of your content, it is rendering correctly but has no real data yet. Add the products, images, or collection it needs and the placeholders give way to your content.

Demo images are missing

The photographs in the Reign demo are licensed for the demo store and do not transfer to your store when you install the theme. After install you will see placeholder shapes where those images were. This is expected.

To fix it, add your own images:

  1. Open each section that shows a placeholder.
  2. In the section or block settings, use the image picker to upload or select your own image.
  3. Repeat for every section that carries a placeholder.

Use your real product and brand photography. Reused stock or demo imagery weakens the store and can clash with the rest of your content.

The mega menu shows as a flat dropdown

Reign's rich mega menu needs two things set up together. If either is missing, the menu falls back to a plain dropdown list, which is the safe default.

  1. A navigation menu with the right depth. In your Shopify admin, under Navigation, the top-level menu item needs sub-items (and, for the richest layout, a third level under those). A top item with no children can only ever be a single link.
  2. A matching block in the header. In the theme editor, open the Header section and add a Mega menu block. In its settings, fill the Parent menu item field with the exact name of the top-level menu item it should expand. With no matching block, that menu item stays a flat dropdown.

So the flat fallback almost always means one of: the menu item has no children, or there is no Mega menu block in the Header whose Parent menu item matches it. Add the missing piece and the rich layout appears.

Tips

  • After any change, save and reload the editor before deciding a problem is still there. The preview can hold an old state.
  • When a section or block will not behave, removing it and adding a fresh one from Add section or Add block clears most stuck states faster than hunting through settings.