House Preview window black screen where the house & props should be

[iflights]

I'm relatively new to XLights and learning fast.   But I purchased a few sequences from a well known xlights guy.  (Amazing amount of knowledge one can glean from peeking inside others work and well worth the price!!!) 

Anyway I put each of the sequence purchases into individual directories.  I can successfully select 2 of the directories using the layout tab, open the sequence, render, and see a house preview on the house preview window when I hit play. 

However, on the 3rd one, I do the exact same steps and see a blank screen on the house preview window while the sequence plays.  Yes, there is an actual house and prop layout laid out on the layout tab, and all network information present.  I just cannot get the house preview to display on its window while playing no matter what I do. 

Anyone have an idea of what this might be a symptom of? 

[keithsw1111]

Have you tried rendering all?

[iflights]

Yes, That's the only way I render. BTW Thanks for the super quick response to my question.  Renders with no errors and in 55 seconds.

[iflights]

Figured it out.  There was a invalid reference to a photo of the house the layout was built on.  As soon as I corrected that entry, everything house preview sprang to life as expected.

Thanks for allowing me 1 sophomoric question.