Georef Google map terrain is lost when I open a saved file up, any help?

I am using the GIS addon for importing google terrain and following the advise of importing using a basemap then apply the 3d terrain by SRTM. I increase the devUV map strength a little to increase the topology of the area.

All is fine, i then save the file. The next day I open the file and the basemap is flat again. If I try and introduce the SRTM is says the scene is not georef.

I have a screenshot of the exported Google sat info. Is there something that I can do, I can see the image on thebaasemap, I just need the 3D projection to apply again.

Thanks in advance.