diff --git a/.current-epic/task-state.json b/.current-epic/task-state.json
index b078e2c..3478624 100644
--- a/.current-epic/task-state.json
+++ b/.current-epic/task-state.json
@@ -27,7 +27,7 @@
       "last_error": null
     },
     "B": {
-      "phase": "implementor-spawned",
+      "phase": "completed",
       "job_id": "general-purpose:implementor-B3",
       "jira_key": "PM-88",
       "jira_url": "https://radiant-industries.atlassian.net/browse/PM-88",
@@ -74,12 +74,11 @@
       "last_error": null
     },
     "E": {
-      "phase": "pending",
+      "phase": "review-blocked",
       "jira_key": "PM-78",
       "jira_url": "https://radiant-industries.atlassian.net/browse/PM-78",
       "title": "Thomas-compatible Rust LDraw semantic core",
       "workspace": "../epic-86-task-E",
-      "bookmark": "epic-86-task-E",
       "task_cache": ".current-epic/task-E.md",
       "plan_path": ".current-epic/plan-E.md",
       "task_context_dir": "../epic-86-task-E/.current-task",
diff --git a/flake.nix b/flake.nix
index a1b5fee..d656355 100644
--- a/flake.nix
+++ b/flake.nix
@@ -84,6 +84,9 @@
           sed -i '1i #include <memory>' include/LDParse/Cache.hpp
           # GCC 15 requires explicit lambda capture for offset in Geom.hpp
           sed -i 's/\[\](uint32_t &index){ index += offset; }/[offset](uint32_t \&index){ index += offset; }/' include/LDParse/Geom.hpp
+          # Callbacks can be invoked after an MPD NOFILE retargets them to nullptr.
+          # Ignore those stale parser events instead of asserting in the oracle.
+          sed -i 's/assert((mTarget != nullptr) \&\& "Invalid target");/if(!mTarget) return R();/' include/LDParse/ModelBuilder/ModelBuilderDefs.hpp
           cp ${./tools/ldraw-oracle/oracle.cpp} oracle.cpp
         '';
         buildPhase = ''
@@ -109,7 +112,7 @@
           CxxBidirectionalCoroutines revision: ${coroutinesRev}
           Oracle schema: ldraw-oracle-v1
           EOF
-          wrapProgram $out/bin/ldraw-oracle --set LD_LIBRARY_PATH \\
+          wrapProgram $out/bin/ldraw-oracle --set LD_LIBRARY_PATH \
             "$out/lib:${pkgs.lib.makeLibraryPath [ pkgs.boost pkgs.stdenv.cc.cc ]}"
           runHook postInstall
         '';
diff --git a/result b/result
new file mode 120000
index 0000000..42199e7
--- /dev/null
+++ b/result
@@ -0,0 +1 @@
+/nix/store/k5ig65nvzynlqzgd357cabbgfz55shv6-ldraw-oracle-0fe78dcee22982f26cceced1b483340faa4d04e9
\ No newline at end of file