Use the “rune” crack’s launcher (Starfield_RUNE.exe or similar). The first boot will take longer as the game rebuilds the voice cache.
Cause: The main Starfield.esm (master file) is version 1.9.x, but the language pack is 1.10.32.
Fix: Update your core game to v1.10.32 first. Language packs are not backward compatible. starfield language pack update v1 10 32rune
For legitimate users, the v1.10.32 update automatically adjusted language files. For those seeking the standalone “rune” pack, here are the documented changes: Use the “rune” crack’s launcher ( Starfield_RUNE