Need Help With Custom Flooring

[chiefusertomi]

Hi,

 

I'm fairly new to Chief Architect and I'm needing some help with custom flooring material.

 

Every time I put my own pattern and mater down the flooring messes up. It looks like its due to the wall in the room, I've attached a picture of what is happening at the wall.

 

If anybody knows anything for me to change or try that would be greatly appreciated.