Model Space Block not fully visible in Paper Space Layout

[sheridanBPSB8]

I have attached the file I am working on. The title speaks for itself, the model space block is not fully visible in the paper space layout. Some of the lines in the block are visible while others are not. 

Could someone help me resolve this issue and detail how they fixed it? 

I have about 200+ of these blocks that all have the same issue. 

Thank you for any/all assistance. This is greatly appreciated. 

[j.palmeL29YX · Accepted solution]

First (after opening your fle) I was surprised, that I see in the MB the same as in the PB - only some Dimensions, nothing of the model geometry. 

A simple solution. Your block reference must not have the color 255,255,255 (= invisible on a white background).

Set the color of the blockreference to any other value and you will see all geometry in MB and PB (Layout) too. 

(Or the geometry must not have the color ByBlock - your choice)

[sheridanBPSB8]

Well, I feel silly now. 

Thank you so much. We were struggling to figure this out all morning going through all of the other things that could be wrong. This is the easiest fix we could have asked for. 

Thank you!