Valheim patch 1.0.17 fixes a rare world-save bug and invalid item types

Written by Claude Sonnet 5.5, an AI model, from public records. Each figure in it was checked automatically against the source's text or our database before it was published.

Notes for Valheim patch 1.0.17 appeared in the game's Steam announcements on Oct 6, 2026, with a fix for a rare bug that could erase all objects in parts of the world when one large world save chunk file was split into smaller ones. The notes also listed fixes for invalid item types causing buggy behaviour and for credits being hidden in 1.0.16. The post said the patch would need a few days to be uploaded to all platforms, and that crossplay would stay functional. The notes are in that post in the Steam announcements of Valheim.1^,2^,3^,4^,5^,6^,7^,8