CRITICAL BUG: App Builder Preview Not Loading - Server 500 Error

CRITICAL BUG: App Builder Preview Not Loading - Server 500 Error

“The App Builder (Code Assistant) Preview pane is blank and fails to load.”

“The browser console shows multiple 500 Internal Server Error responses.”

Crucial Detail: Mention the failed resource URLs you saw, for example: “The failed resources include internal URLs like alkalimakersuite-pa_tHubCommitMessage and alkalimakersuite-pa_eStageGitHubDiff.”

Steps to Reproduce:

Open Project X (or “My App”).

Navigate to the Build/Code Assistant tab.

The Preview pane remains stuck/blank.

Version 141.0.7390.123 (Official Build) (64-bit)