If you want the logs to all have the same fill and have the line between them show, make a copy of the fill you want to use and alternate the fills oer the wall on the right.
The one on the left shows the same fill in all the logs and a different one in between.
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"