diff --git a/src/tagstudio/qt/widgets/preview/preview_thumb.py b/src/tagstudio/qt/widgets/preview/preview_thumb.py
index 66572750..9d5e82ac 100644
--- a/src/tagstudio/qt/widgets/preview/preview_thumb.py
+++ b/src/tagstudio/qt/widgets/preview/preview_thumb.py
@@ -108,7 +108,7 @@ class PreviewThumb(QWidget):
     def set_image_ratio(self, ratio: float):
         self.image_ratio = ratio
 
-    def update_image_size(self, size: tuple[int, int], ratio: float = None):
+    def update_image_size(self, size: tuple[int, int], ratio: float | None = None):
         if ratio:
             self.set_image_ratio(ratio)
 
@@ -168,7 +168,7 @@ class PreviewThumb(QWidget):
                 self.gif_buffer.close()
             self.preview_gif.hide()
 
-    def _display_fallback_image(self, filepath: Path, ext=str) -> dict:
+    def _display_fallback_image(self, filepath: Path, ext: str) -> dict:
         """Renders the given file as an image, no matter its media type.
 
         Useful for fallback scenarios.
@@ -189,7 +189,7 @@ class PreviewThumb(QWidget):
         stats: dict = {}
         self.switch_preview("image")
 
-        image: Image.Image = None
+        image: Image.Image | None = None
 
         if MediaCategories.is_ext_in_category(
             ext, MediaCategories.IMAGE_RAW_TYPES, mime_fallback=True
@@ -201,8 +201,8 @@ class PreviewThumb(QWidget):
                     stats["width"] = image.width
                     stats["height"] = image.height
             except (
-                rawpy._rawpy.LibRawIOError,
-                rawpy._rawpy.LibRawFileUnsupportedError,
+                rawpy._rawpy._rawpy.LibRawIOError,  # pyright: ignore[reportAttributeAccessIssue]
+                rawpy._rawpy.LibRawFileUnsupportedError,  # pyright: ignore[reportAttributeAccessIssue]
                 FileNotFoundError,
             ):
                 pass
@@ -237,20 +237,25 @@ class PreviewThumb(QWidget):
             image: Image.Image = Image.open(filepath)
             stats["width"] = image.width
             stats["height"] = image.height
+
             self.update_image_size((image.width, image.height), image.width / image.height)
-            anim_image: Image.Image = image
-            image_bytes_io: io.BytesIO = io.BytesIO()
-            anim_image.save(
-                image_bytes_io,
-                "GIF",
-                lossless=True,
-                save_all=True,
-                loop=0,
-                disposal=2,
-            )
-            image_bytes_io.seek(0)
-            ba: bytes = image_bytes_io.read()
-            self.gif_buffer.setData(ba)
+            if ext == ".apng":
+                image_bytes_io = io.BytesIO()
+                image.save(
+                    image_bytes_io,
+                    "GIF",
+                    lossless=True,
+                    save_all=True,
+                    loop=0,
+                    disposal=2,
+                )
+                image.close()
+                image_bytes_io.seek(0)
+                self.gif_buffer.setData(image_bytes_io.read())
+            else:
+                image.close()
+                with open(filepath, "rb") as f:
+                    self.gif_buffer.setData(f.read())
             movie = QMovie(self.gif_buffer, QByteArray())
             self.preview_gif.setMovie(movie)
 
@@ -263,8 +268,8 @@ class PreviewThumb(QWidget):
             self.switch_preview("animated")
             self.resizeEvent(
                 QResizeEvent(
-                    QSize(image.width, image.height),
-                    QSize(image.width, image.height),
+                    QSize(stats["width"], stats["height"]),
+                    QSize(stats["width"], stats["height"]),
                 )
             )
             movie.start()