Okay, I think the fault is now repeatable. But I'd appreciate somebody else who uses multiple runtimes confirming this. All you need to do (assuming you're still using the Poser default startup scene) is from the Poser main menu temporarily set Edit > General Preferences > Library > File search to 'None' and perform the following steps

- Open Poser (default scene), make sure you have file search set to None

- Load a prop. To reproduce the fault condition load it from a different runtime, i.e. any runtime that doesn't hold the default Poser content. Note that if any of the paths in the PP2 are incorrect you'll see "Please Locate..." dialogues for each and every one of them.

- Go to Material room (to get the 'Can't find head.obj'). N.B. If the preview image for the PoserSurface is not displayed (the eye is closed) you'll have to display it.

- Go back to Pose room

- Add a light

- Change it to a Point (to get the 'Can't find pointlite.obj')

(When you've finished don't forget to set file search back to whatever you normally use :D )

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The 3Dcheapskate* occasionally posts sensible stuff. Usually by accident.
And it usually uses Poser 11, with units set to inches. Except when it's using Poser 6 or PP2014, or when its units are set to PNU.

*also available in ShareCG, DAZ, and HiveWire3D flavours (the DeviantArt and CGBytes flavour have been discontinued).