Map Block: Markers no longer visible in editor

[mdawaffe]

Impacted plugin

Jetpack

Quick summary

Mapbox markers no longer show up in the editor as of Gutenberg 18.5.0. The markers are still visible on the front end.

The relevant change is: WordPress/gutenberg#61943 - Enabling React's strict mode (though I don't know why that caused the issue).

Steps to reproduce

1. Create a new post
2. Add a map block (ensure you have a Mapbox access token set) and add a marker.
3. See that the marker does not appear.
4. Publish the post, and view it on the site.
5. See that the marker does appear.

A clear and concise description of what you expected to happen.

Map markers should be visible in both the front end and the editor.

What actually happened

Markers are not visible in the editor.

Impact

Some (< 50%)

Available workarounds?

No but the platform is still usable

Platform (Simple and/or Atomic)

No response

Logs or notes

No response

[liviopv]

📌 REPRODUCTION RESULTS

• Tested on Simple – Could Not Replicate
• Tested on Atomic – Replicated / Could Not Replicate / Uncertain
• Tested on P2 (optional) – Replicated / Could Not Replicate / Uncertain
• Replicable outside of Dotcom – Yes/No

📌 FINDINGS/SCREENSHOTS/VIDEO
WordPress.com Simple - markers show correctly on backend and frontend

WordPress.com Atomic

CleanShot.2024-06-17.at.11.43.36.mp4

📌 ACTIONS

• Triaged
• Requested author feedback

📌 Message to Author
@mdawaffe I wasn't able to reproduce it, markers show for me in both Atomic and Simple. Am I missing anything?

[jeherve]

I wasn't able to reproduce it, markers show for me in both Atomic and Simple. Am I missing anything?

Atomic and Simple use a different map provider, Mapkit, instead of the default Mapbox. The problem seems limited to Mapbox for now.