diff --git a/server/src/__tests__/issues-service.test.ts b/server/src/__tests__/issues-service.test.ts
index 0d4fd35b825..20ef32aa722 100644
--- a/server/src/__tests__/issues-service.test.ts
+++ b/server/src/__tests__/issues-service.test.ts
@@ -3103,6 +3103,139 @@ describeEmbeddedPostgres("issueService blockers and dependency wake readiness",
     });
   });
 
+  it("keeps a legacy blocker finalize barrier when a later sibling has run-attributed workspace ops", async () => {
+    const companyId = randomUUID();
+    const assigneeAgentId = randomUUID();
+    const projectId = randomUUID();
+    const projectWorkspaceId = randomUUID();
+    const executionWorkspaceId = randomUUID();
+    const siblingRunId = randomUUID();
+
+    await db.insert(companies).values({
+      id: companyId,
+      name: "Paperclip",
+      issuePrefix: `T${companyId.replace(/-/g, "").slice(0, 6).toUpperCase()}`,
+      requireBoardApprovalForNewAgents: false,
+    });
+    await db.insert(agents).values({
+      id: assigneeAgentId,
+      companyId,
+      name: "QA",
+      role: "qa",
+      status: "active",
+      adapterType: "claude_local",
+      adapterConfig: {},
+      runtimeConfig: {},
+      permissions: {},
+    });
+    await db.insert(projects).values({
+      id: projectId,
+      companyId,
+      name: "Shared workspace project",
+      status: "in_progress",
+    });
+    await db.insert(projectWorkspaces).values({
+      id: projectWorkspaceId,
+      companyId,
+      projectId,
+      name: "Shared workspace",
+      sourceType: "local_path",
+      visibility: "default",
+      isPrimary: true,
+    });
+    await db.insert(executionWorkspaces).values({
+      id: executionWorkspaceId,
+      companyId,
+      projectId,
+      projectWorkspaceId,
+      mode: "isolated_workspace",
+      strategyType: "git_worktree",
+      name: "Shared exec workspace",
+      status: "active",
+      providerType: "git_worktree",
+    });
+
+    const blockerId = randomUUID();
+    const siblingId = randomUUID();
+    const dependentId = randomUUID();
+    await db.insert(issues).values([
+      {
+        id: blockerId,
+        companyId,
+        projectId,
+        title: "Legacy predecessor",
+        status: "done",
+        priority: "medium",
+        executionWorkspaceId,
+      },
+      {
+        id: siblingId,
+        companyId,
+        projectId,
+        title: "Later sibling",
+        status: "in_progress",
+        priority: "medium",
+        executionWorkspaceId,
+      },
+      {
+        id: dependentId,
+        companyId,
+        projectId,
+        title: "Dependent",
+        status: "blocked",
+        priority: "medium",
+        assigneeAgentId,
+      },
+    ]);
+    await db.insert(heartbeatRuns).values({
+      id: siblingRunId,
+      companyId,
+      agentId: assigneeAgentId,
+      invocationSource: "assignment",
+      triggerDetail: "system",
+      status: "running",
+      contextSnapshot: { issueId: siblingId, taskId: siblingId },
+    });
+    await db.insert(workspaceOperations).values([
+      {
+        companyId,
+        executionWorkspaceId,
+        phase: "worktree_prepare",
+        status: "succeeded",
+        startedAt: new Date("2026-05-23T22:00:00.000Z"),
+      },
+      {
+        companyId,
+        executionWorkspaceId,
+        heartbeatRunId: siblingRunId,
+        phase: "worktree_prepare",
+        status: "succeeded",
+        startedAt: new Date("2026-05-23T22:15:00.000Z"),
+      },
+    ]);
+    await svc.update(dependentId, { blockedByIssueIds: [blockerId] });
+
+    await expect(svc.getDependencyReadiness(dependentId)).resolves.toMatchObject({
+      isDependencyReady: false,
+      pendingFinalizeBlockerIssueIds: [blockerId],
+      unresolvedBlockerIssueIds: [blockerId],
+    });
+
+    await db.insert(workspaceOperations).values({
+      companyId,
+      executionWorkspaceId,
+      phase: "workspace_finalize",
+      status: "succeeded",
+      startedAt: new Date("2026-05-23T22:20:00.000Z"),
+    });
+
+    await expect(svc.getDependencyReadiness(dependentId)).resolves.toMatchObject({
+      isDependencyReady: true,
+      pendingFinalizeBlockerIssueIds: [],
+      unresolvedBlockerIssueIds: [],
+    });
+  });
+
   it("keeps a reused-workspace blocker ready when a later sibling operation is unfinalized", async () => {
     const companyId = randomUUID();
     const assigneeAgentId = randomUUID();
diff --git a/server/src/services/issues.ts b/server/src/services/issues.ts
index 78ec84becce..1949e716d61 100644
--- a/server/src/services/issues.ts
+++ b/server/src/services/issues.ts
@@ -697,7 +697,6 @@ async function listPendingFinalizeBlockerIssueIds(
 
   const latestByBlockerIssueId = new Map<string, { phase: string; status: string; startedAt: Date }>();
   const latestLegacyByWorkspaceId = new Map<string, { phase: string; status: string; startedAt: Date }>();
-  const workspacesWithRunAttributedOps = new Set<string>();
   for (const row of rows) {
     if (!row.executionWorkspaceId) continue;
     const blockerIds = blockerIdsByWorkspaceId.get(row.executionWorkspaceId);
@@ -716,7 +715,6 @@ async function listPendingFinalizeBlockerIssueIds(
       }
       continue;
     }
-    workspacesWithRunAttributedOps.add(row.executionWorkspaceId);
     for (const blockerIssueId of runIssueIds) {
       if (!blockerIds.has(blockerIssueId)) continue;
       const current = latestByBlockerIssueId.get(blockerIssueId);
@@ -733,9 +731,7 @@ async function listPendingFinalizeBlockerIssueIds(
   for (const target of targets) {
     const workspaceId = target.executionWorkspaceId;
     const latest = latestByBlockerIssueId.get(target.blockerIssueId) ??
-      (workspaceId && !workspacesWithRunAttributedOps.has(workspaceId)
-        ? latestLegacyByWorkspaceId.get(workspaceId)
-        : null);
+      (workspaceId ? latestLegacyByWorkspaceId.get(workspaceId) : null);
     if (!latest) continue; // no blocker-specific workspace ops recorded -> no finalize barrier
     if (latest.phase === "workspace_finalize" && latest.status === "succeeded") continue;
     pending.add(target.blockerIssueId);