Visual studio fails to format with error InvalidUtf8

[bpeake13]

On windows when trying to format a file I get the following log

[Info  - 1:01:28 AM] [info-main] zls initialized
[Info  - 1:01:28 AM] [info-main] ClientCapabilities{ .supports_snippets = true, .supports_semantic_tokens = true, .hover_supports_md = true, .completion_doc_supports_md = true, .label_details_support = true, .supports_configuration = true }
[Info  - 1:01:28 AM] [info-main] Using offset encoding: utf16
[Info  - 1:01:28 AM] [info-main] Requesting configuration!
[Info  - 1:01:28 AM] [info-doc_store] builtin config not found, falling back to default: <file>
[Info  - 1:01:34 AM] [info-doc_store] builtin config not found, falling back to default: <file>
[Warn  - 1:01:34 AM] [warn-doc_store] Failed to load packages of build file <file>
[Info  - 1:01:34 AM] [info-main] Setting configuration...
[Warn  - 1:01:52 AM] [warn-main] Failed to spawn zig fmt process, error: error.InvalidUtf8

It seems like it is using utf16 for some reason, but i dont see a config related to this

[SuperAuguste]

zls using utf16 for offsets should be unrelated; also, it's the LSP client that determines which offset encoding should be used, thus why this is not configurable. To me, InvalidUtf8 seems more like some sort of garbage data. Regardless, can you please provide more information/context for this issue?

[SuperAuguste]

Found the problem; zls config options weren't properly being duped.