Update caption processing state: next_index=0

processing_state_cursors.json

@@ -86,6 +86,6 @@
     "BlenderLaunchPad_DownloadPirate.com.part2_10_eevee_render_motion_blur_frames.zip": "failed",
     "BlenderLaunchPad_DownloadPirate.com.part2_11_cycles_render_basics_frames.zip": "failed",
     "BlenderLaunchPad_DownloadPirate.com.part2_12_workbench_render_basics_frames.zip": "failed",
-    "BlenderLaunchPad_DownloadPirate.com.part2_13_rendering_the_3d_viewport_frames.zip": "processing"
+    "BlenderLaunchPad_DownloadPirate.com.part2_13_rendering_the_3d_viewport_frames.zip": "failed"
   }
 }