Hello, after updating Discourse to v2026.4.0-latest — Ember v6.10.1, an error occurred, making the forum unusable:
client-error-handler.js:109 [THEME 28 ‘FKB Pro theme’] Error: Could not find module ember-this-fallback/this-fallback-helper imported from (require)
at loader.js:247:1
at a (loader.js:258:1)
at requireModule (loader.js:24:1)
at Object.lookup (app.js:36:12)
We hope this can be fixed.