Rename it to Strings_ENG_US.bak (as backup).
Run the process on your Mods folder. This tool creates dummy strings for all languages so that even if a translation doesn't exist, the English text (or at least a placeholder) will show up instead of a blank space. Summary Checklist Replaces corrupted core files. Delete Cache: Removes old data "ghosts." sims 4 language strings fix
AI Technical Support Research Publication Date: April 21, 2026 Subject: Game Localization & File Integrity Rename it to Strings_ENG_US
String errors are almost always mod-related. After cache repair: <
Before fix: <Entry key="0x12345678">DEBUG_NPC_NAME</Entry> After cache repair: <Entry key="0x12345678">Nancy Landgraab</Entry>