Theme Editor doesn't hot reload

Shopify CLI and Libraries
1

I have reproduced the issue on the latest CLI version.

Yes, I am on the latest version

I have searched existing posts and this report is not a duplicate.

Yes, this isn’t a duplicate

In which of these areas are you experiencing a problem?

Theme

Expected behavior

When making a change locally, the theme editor (whilst open on 127) would hot reload.

Actual behavior

This no longer happens and has been broken since the higher end of the 3.X version numbers.

This does in fact work when having Shopify’s Code Editor open.

Reproduction steps

Load CLI locally with theme-editor-sync, make a schema change or something to trigger the theme editor to hot reload.

Small recording: CleanShot 2026-05-28 at 12.47.48 · CleanShot Cloud

Verbose output

Too large - please view Pastebin:
https://pastebin.com/pLskeEh1

Operating system

macOS 26.5

CLI version

4.0.0

Shell

zsh

Nodejs version

v26

What language and version are you using in your application?

N/A

3

Hey @nbsimmons :waving_hand: thanks for flagging this.

It doesn’t appear that this was ever resolved after your previous report of the same issue.

I’m going to do some digging here and I’ll follow up with you here when I have more info to share.

4

Hey @nbsimmons - following up here with some good news.

We tracked down what was breaking the hot reload and the fix will go out in an upcoming CLI release. If you want to test it out before then, you can try the nightly build 0.0.0-nightly-20260602074323.

Just keep in mind the nightly includes other in-progress changes too.

5

Thanks Wes!

Yeah it seems my thread got lost in the aether which was incredibly disappointing but glad to see you’ve found out what caused it.

I’ll try the nightly build over the coming days - fingers crossed this fixes it!