Make sure that both of the routers on both ends have LAN's defined.
If you have two LANs on router A - then you must define them in IPSec configuration as Local IP address/Subnet mask.
On the other side, Router B you must also define both Router A LANs, but this time in Remote IP address/Subnet mask.
As I see only one side configuration in the screenshot, I assume you didn't do that.
I've tested this just now and I have fully working ping across all 3 LANS (2 on A, 1 on B).
EB.