diff --git a/README.md b/README.md
index 98802aa..500a3eb 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Fixes use whichever approach the engine calls for:
 
 - **SUWSF + Ultimate ASI Loader** — runtime memory patching, for Unreal titles (and anything DRM-wrapped, where static patching is impossible).
 - **BepInEx plugin** — a proper C# mod, for Unity titles with the Mono backend.
-- **External** — where a good third-party fix already exists, it is vendored (license permitting) with our tuned config and full credit, rather than reimplemented.
+- **External** — where a good third-party fix already exists, it is vendored (license permitting) with our tuned config and full credit, rather than reimplemented. Vendored fixes can go stale against a patched game, so those entries carry a revalidation checklist.
 
 Most force **Hor+ FOV** (a wider screen shows you *more* rather than zooming in) and fix UI that assumes 16:9. Some games already render correctly and only need UI work — [Burglin' Gnomes](games/BurglinGnomes/) is one, and the fix deliberately leaves its camera alone.
 
@@ -16,7 +16,7 @@ Most force **Hor+ FOV** (a wider screen shows you *more* rather than zooming in)
 |---|---|---|---|
 | [Gundam Breaker 4](games/GundamBreaker4/) | Unreal Engine 4.27 | SUWSF | ✅ Confirmed working at 5120×1440 |
 | [Burglin' Gnomes](games/BurglinGnomes/) | Unity 6 (Mono) | BepInEx plugin | ✅ Confirmed working at 5120×1440 |
-| [Clair Obscur: Expedition 33](games/Expedition33/) | Unreal Engine 5 | External ([ClairObscurFix](https://github.com/Lyall/ClairObscurFix) by Lyall) | ⚠️ Awaiting first-launch verification |
+| [Clair Obscur: Expedition 33](games/Expedition33/) | Unreal Engine 5 | External ([ClairObscurFix](https://github.com/Lyall/ClairObscurFix) by Lyall) | ⚠️ Partial — reduced profile, see notes |
 
 ## Install
 
diff --git a/games/Expedition33/ClairObscurFix.ini b/games/Expedition33/ClairObscurFix.ini
index 12ffe89..3aaf59a 100644
--- a/games/Expedition33/ClairObscurFix.ini
+++ b/games/Expedition33/ClairObscurFix.ini
@@ -11,11 +11,13 @@ Enabled = false
 
 [Uncap Cutscene FPS]
 ; Removes 30fps cap in cutscenes.
-Enabled = true
+; DISABLED: bisecting a crash-on-save-load with game build > fix v0.0.10.
+Enabled = false
 
 [Adjust Resolution Checks]
 ; Adjusts resolution checks to use the monitor's maximum supported resolution, rather than the "native" resolution.
-Enabled = true
+; DISABLED: its pattern scan already fails on this game build ("Resolution Checks: Pattern scan failed").
+Enabled = false
 
 [Background Audio]
 ; Set "Enabled" to true to allow audio to continue playing when the game window has lost focus.
@@ -29,7 +31,8 @@ Enabled = false
 
 [Fix Movies]
 ; Crops letterboxing from pre-rendered movies at ultrawide resolutions.
-Enabled = true
+; DISABLED: bisecting; re-enable once the crash source is known.
+Enabled = false
 
 [Center HUD]
 ; Set "Enabled" to true to center certain parts of the HUD to 16:9 at ultrawide resolutions.
diff --git a/games/Expedition33/README.md b/games/Expedition33/README.md
index a9befc3..0509e24 100644
--- a/games/Expedition33/README.md
+++ b/games/Expedition33/README.md
@@ -1,6 +1,6 @@
 # Clair Obscur: Expedition 33 — UltraWide
 
-⚠️ **Awaiting first-launch verification at 5120×1440.**
+⚠️ **Partial support — reduced feature profile.** ClairObscurFix v0.0.10 is archived and predates the current game build; running it with upstream defaults **crashed on save load**. This repo ships a reduced profile with only the 32:9 HUD centering enabled.
 
 - **Engine:** Unreal Engine 5 — **no DRM** (no SteamStub; `.text` entropy 6.74)
 - **Steam AppID:** 1903340
@@ -64,13 +64,38 @@ Edit `…/Sandfall/Binaries/Win64/ClairObscurFix.ini` (requires a restart — th
 ./install.sh Expedition33 uninstall
 ```
 
-## Status / open questions
+## Known issue: version drift
 
-The game has an official ultrawide fix as of patch **1.2.3**, so some of this may be redundant. Unverified at 32:9:
+**ClairObscurFix v0.0.10 (May 2025) is archived and no longer tracks the game.**
 
-- [ ] Does it launch correctly under Proton at 5120×1440?
-- [ ] Is `Center HUD` at 16:9 right, or is 21:9 better?
-- [ ] Any remaining pillarboxing in cutscenes or pre-rendered movies?
-- [ ] Is the camera FOV Hor+ (see more) or Vert- (zoomed)?
+Observed on a current build (2026-07-21), with upstream defaults:
 
-If a gap remains that ClairObscurFix doesn't cover, *that* is where this repo would add its own patch.
+```
+[error] Resolution Checks: Pattern scan failed.
+[error] Resolution Scale Bug: Pattern scan failed.
+```
+
+…followed by a **crash when loading a save**. Removing the fix entirely made the
+game load normally, isolating the fix as the cause. The crash coincides with the
+fix's `Level Load` hook, which is consistent with a hook attaching to shifted
+code in a newer binary.
+
+**Mitigation:** ship a reduced profile — everything disabled except `Center HUD`,
+the only option genuinely needed at 32:9. The failing scans are disabled outright
+since they were already inert.
+
+## Maintenance / revalidation
+
+Because upstream is archived, this entry decays as the game patches. Re-check
+after any significant game update:
+
+1. Launch and load a save. If it crashes, remove the fix (`./install.sh Expedition33 uninstall`) and retry to confirm the fix is the cause rather than the game or Proton.
+2. Read `Sandfall/Binaries/Win64/ClairObscurFix.log` — `Pattern scan failed` lines mark hooks that no longer match the binary.
+3. Disable any newly-failing feature in `ClairObscurFix.ini`; a failed scan is inert, but a *wrongly-attached* hook is what crashes.
+4. If `Center HUD` itself stops working, this entry should be marked unsupported. The game has **no DRM**, so writing a small dedicated HUD-centering patch is a viable replacement.
+
+## Still unverified at 32:9
+
+- [ ] Is `Center HUD` at 16:9 right, or is 21:9 (`2.33333`) better?
+- [ ] Camera FOV — Hor+ (see more) or Vert- (zoomed)?
+- [ ] Pillarboxing in cutscenes / pre-rendered movies (`Fix Movies` currently **off**)
diff --git a/games/Expedition33/game.conf b/games/Expedition33/game.conf
index 5b92e23..43f1a21 100644
--- a/games/Expedition33/game.conf
+++ b/games/Expedition33/game.conf
@@ -16,4 +16,4 @@ LOADER="dsound.dll"
 LAUNCH_OPTION='WINEDLLOVERRIDES="dsound=n,b" %command%'
 
 PREFIX_INI=""
-STATUS="Vendored ClairObscurFix (MIT) + 32:9 config — awaiting first-launch verification"
+STATUS="PARTIAL — reduced profile (Center HUD only); upstream v0.0.10 is archived and crashes with full features on current builds"