diff --git a/poi-ooxml/src/main/java/org/apache/poi/openxml4j/opc/PackageRelationshipTypes.java b/poi-ooxml/src/main/java/org/apache/poi/openxml4j/opc/PackageRelationshipTypes.java
index c328849e08..b5a13f875b 100644
--- a/poi-ooxml/src/main/java/org/apache/poi/openxml4j/opc/PackageRelationshipTypes.java
+++ b/poi-ooxml/src/main/java/org/apache/poi/openxml4j/opc/PackageRelationshipTypes.java
@@ -101,6 +101,11 @@ public interface PackageRelationshipTypes {
      */
     String IMAGE_PART = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image";
 
+    /**
+     * hdphoto type.
+     */
+    String HDPHOTO_PART = "http://schemas.microsoft.com/office/2007/relationships/hdphoto";
+
     /**
      * Hyperlink type.
      */
diff --git a/poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFRelation.java b/poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFRelation.java
index 5139e6278c..19d0c3d10f 100644
--- a/poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFRelation.java
+++ b/poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFRelation.java
@@ -16,6 +16,7 @@
 ==================================================================== */
 package org.apache.poi.xslf.usermodel;
 
+import static org.apache.poi.openxml4j.opc.PackageRelationshipTypes.HDPHOTO_PART;
 import static org.apache.poi.openxml4j.opc.PackageRelationshipTypes.IMAGE_PART;
 
 import java.util.HashMap;
@@ -221,7 +222,12 @@ public final class XSLFRelation extends POIXMLRelation {
         "/ppt/media/image#.wdp",
         XSLFPictureData::new, XSLFPictureData::new
     );
-
+    public static final XSLFRelation HDPHOTO_WDP = new XSLFRelation(
+        PictureType.WDP.contentType,
+        HDPHOTO_PART,
+        "/ppt/media/hdphoto#.wdp",
+        XSLFPictureData::new, XSLFPictureData::new
+    );
     public static final XSLFRelation IMAGE_SVG = new XSLFRelation(
         PictureType.SVG.contentType,
         IMAGE_PART,
diff --git a/poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFSheet.java b/poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFSheet.java
index 3c367dd9bb..47be24663a 100644
--- a/poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFSheet.java
+++ b/poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFSheet.java
@@ -648,7 +648,13 @@ implements XSLFShapeContainer, Sheet<XSLFShape,XSLFTextParagraph> {
      * @return ID of the created relationship
      */
     String importBlip(String blipId, POIXMLDocumentPart parent) {
-        final XSLFPictureData parData = parent.getRelationPartById(blipId).getDocumentPart();
+        final POIXMLDocumentPart docPart = parent.getRelationPartById(blipId).getDocumentPart();
+        XSLFPictureData parData;
+        if (docPart instanceof XSLFPictureData) {
+            parData = (XSLFPictureData)docPart;
+        } else {
+            throw new RuntimeException("cannot import blip " + blipId + " - document part is not XSLFPictureData type");
+        }
         final XSLFPictureData pictureData;
         if (getPackagePart().getPackage() == parent.getPackagePart().getPackage()) {
             // handle ref counter correct, if the parent document is the same as this
diff --git a/poi-ooxml/src/test/java/org/apache/poi/xslf/TestXSLFBugs.java b/poi-ooxml/src/test/java/org/apache/poi/xslf/TestXSLFBugs.java
index 5b239a8ad6..a87738d086 100644
--- a/poi-ooxml/src/test/java/org/apache/poi/xslf/TestXSLFBugs.java
+++ b/poi-ooxml/src/test/java/org/apache/poi/xslf/TestXSLFBugs.java
@@ -32,9 +32,7 @@ import static org.junit.jupiter.api.Assumptions.assumeFalse;
 
 import java.awt.Color;
 import java.awt.geom.Rectangle2D;
-import java.io.ByteArrayInputStream;
 import java.io.IOException;
-import java.io.InputStream;
 import java.net.URI;
 import java.text.AttributedCharacterIterator;
 import java.text.AttributedCharacterIterator.Attribute;
@@ -49,6 +47,7 @@ import java.util.function.Function;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.poi.POIDataSamples;
 import org.apache.poi.common.usermodel.HyperlinkType;
 import org.apache.poi.ooxml.POIXMLDocumentPart;
@@ -75,7 +74,6 @@ import org.apache.poi.sl.usermodel.SlideShowFactory;
 import org.apache.poi.sl.usermodel.TextRun;
 import org.apache.poi.sl.usermodel.TextShape;
 import org.apache.poi.sl.usermodel.VerticalAlignment;
-import org.apache.poi.util.IOUtils;
 import org.apache.commons.io.output.NullPrintStream;
 import org.apache.poi.xslf.usermodel.*;
 import org.apache.poi.xslf.util.DummyGraphics2d;
@@ -1044,4 +1042,21 @@ class TestXSLFBugs {
             assertEquals(TextRun.TextCap.ALL, act);
         }
     }
+
+    @Test
+    public void bug65523() throws IOException {
+        try (XMLSlideShow sourcePresentation = openSampleDocument("bug65523.pptx")) {
+            XMLSlideShow targetPresentation = new XMLSlideShow();
+            XSLFSlide targetPresentationSlide = targetPresentation.createSlide();
+
+            XSLFSlide sourceSlide = sourcePresentation.getSlides().get(0);
+
+            targetPresentationSlide.getSlideMaster().importContent(sourceSlide.getSlideMaster());
+            targetPresentationSlide.getSlideLayout().importContent(sourceSlide.getSlideLayout());
+
+            targetPresentationSlide.importContent(sourceSlide);
+
+            targetPresentation.write(new UnsynchronizedByteArrayOutputStream());
+        }
+    }
 }
diff --git a/test-data/slideshow/bug65523.pptx b/test-data/slideshow/bug65523.pptx
new file mode 100644
index 0000000000..3d737d7b63
Binary files /dev/null and b/test-data/slideshow/bug65523.pptx differ