diff --git a/Resources/Info.plist b/Resources/Info.plist
index 2f8b328..70e6261 100644
--- a/Resources/Info.plist
+++ b/Resources/Info.plist
@@ -19,9 +19,9 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.4.0</string>
+	<string>0.4.1</string>
 	<key>CFBundleVersion</key>
-	<string>5</string>
+	<string>6</string>
 	<key>LSMinimumSystemVersion</key>
 	<string>13.0</string>
 	<key>NSHighResolutionCapable</key>
diff --git a/Sources/GrowthLapse/VideoProcessor.swift b/Sources/GrowthLapse/VideoProcessor.swift
index 36167d9..c2f8c9d 100644
--- a/Sources/GrowthLapse/VideoProcessor.swift
+++ b/Sources/GrowthLapse/VideoProcessor.swift
@@ -924,15 +924,16 @@ final class VideoProcessor: ObservableObject {
                     if let pose = sample.pose {
                         guard [pose.x, pose.y, pose.height, pose.yaw, pose.roll].allSatisfy({ $0.isFinite }),
                               (0...1).contains(pose.x), (0...1).contains(pose.y), (0...1).contains(pose.height),
-                              abs(pose.yaw) <= .pi, abs(pose.roll) <= .pi,
-                              pose.pitch == nil || (pose.pitch!.isFinite && abs(pose.pitch!) <= .pi) else { return false }
+                              // Vision angles originate as Float; Float.pi is slightly larger than Double.pi.
+                              abs(pose.yaw) <= Double(Float.pi), abs(pose.roll) <= Double(Float.pi),
+                              pose.pitch == nil || (pose.pitch!.isFinite && abs(pose.pitch!) <= Double(Float.pi)) else { return false }
                     }
                     if let color = sample.color {
                         guard color.luminance.isFinite, (0...1).contains(color.luminance),
                               [color.redToGreen, color.blueToGreen].compactMap({ $0 }).allSatisfy({ $0.isFinite && $0 > 0 && $0 < 10 }) else { return false }
                     }
                     return true
-                }) else { throw VideoProcessingError.invalidSettings("Ungültige gespeicherte Bildanalyse.") }
+                }) else { throw VideoProcessingError.invalidSettings("Ungültige gespeicherte Bildanalyse: \(clip.displayName).") }
             }
             for variant in clip.availableVariants {
                 guard variant.sourcePath.hasPrefix("/"), variant.duration.isFinite, variant.duration > 0,
diff --git a/Tests/Integration/RenderIntegration.swift b/Tests/Integration/RenderIntegration.swift
index f525ded..bb70dce 100644
--- a/Tests/Integration/RenderIntegration.swift
+++ b/Tests/Integration/RenderIntegration.swift
@@ -196,6 +196,25 @@ struct RenderIntegration {
         try require(loaded.loadProject(from: GrowthLapseProject.url(for: second.outputFileURL)) != nil, "Project reload")
         print("PASS failure preservation, save-as, cache reuse and project reload")
 
+        // Vision's single-precision ±pi must survive project validation unchanged.
+        var angleProject = second
+        let visionPi = Double(Float.pi)
+        angleProject.clips[0].visualAnalysis = ClipVisualAnalysis(sourceSignature: "angle-test", samples: [
+            VisualSample(time: 0, faceCount: 1,
+                pose: FacePose(x: 0.5, y: 0.5, height: 0.3, yaw: visionPi,
+                    roll: -visionPi, eyesVisible: true, pitch: visionPi), color: nil, quality: 0)
+        ])
+        let angleURL = root.appendingPathComponent("vision-angles.json")
+        try JSONEncoder().encode(angleProject).write(to: angleURL)
+        let angleLoader = VideoProcessor()
+        let accepted = angleLoader.loadProject(from: angleURL)
+        try require(accepted?.clips[0].visualAnalysis == angleProject.clips[0].visualAnalysis,
+            "Valid Vision Float.pi angles rejected or altered")
+        angleProject.clips[0].visualAnalysis!.samples[0].pose!.roll = 3.15
+        try JSONEncoder().encode(angleProject).write(to: angleURL)
+        try require(angleLoader.loadProject(from: angleURL) == nil, "Out-of-range angle accepted")
+        print("PASS Vision Float.pi project round-trip and invalid-angle rejection")
+
         // Exercise failure after normalization, while FFmpeg is producing the final video.
         let wrapper = root.appendingPathComponent("ffmpeg-fail")
         let quotedFFmpeg = "'" + tools.ffmpeg.path.replacingOccurrences(of: "'", with: "'\\''") + "'"