diff --git a/crates/ide-run/src/tomcat.rs b/crates/ide-run/src/tomcat.rs
index 1352976f6..828af5272 100644
--- a/crates/ide-run/src/tomcat.rs
+++ b/crates/ide-run/src/tomcat.rs
@@ -401,6 +401,10 @@ fn canonical_path(path: &Path) -> IdeResult<PathBuf> {
             std::path::Component::CurDir => {}
             _ => resolved.push(component),
         }
+        // A bare drive prefix such as `\\?\C:` names the volume device, which cannot be canonicalized.
+        if !resolved.has_root() {
+            continue;
+        }
         match dunce::canonicalize(&resolved) {
             Ok(path) => resolved = path,
             Err(e) if e.kind() == std::io::ErrorKind::NotFound && fs::symlink_metadata(&resolved).is_err() => {}
diff --git a/e2e/agentApproval.spec.ts b/e2e/agentApproval.spec.ts
index 13b10b33f..a742cf887 100644
--- a/e2e/agentApproval.spec.ts
+++ b/e2e/agentApproval.spec.ts
@@ -112,9 +112,10 @@ for (const theme of ["dark", "light"] as const) {
       });
       expect(geometry.scroll).toBe(geometry.client);
       expect(geometry.contained).toBe(true);
-      expect(geometry.promptRadius).toBeLessThanOrEqual(4);
-      expect(geometry.replyBackground).not.toBe("rgba(0, 0, 0, 0)");
-      expect(geometry.replyBorder).toBe("1px");
+      expect(geometry.promptRadius).toBeLessThanOrEqual(6);
+      // Replies read as plain text on the panel.
+      expect(geometry.replyBackground).toBe("rgba(0, 0, 0, 0)");
+      expect(geometry.replyBorder).toBe("0px");
       expect(geometry.userOnRight).toBe(true);
       expect(geometry.approvalAligned).toBe(true);
       expect(geometry.authorBeforeWork).toBe(true);