In the setup like in the image (I'm facing east) or in the .schematic the command blocks in the middle row facing east and west aren't executing their command. I tried it at different locations and directions in the world, but nowhere it worked.
Additionally, when triggering these commands in the chat they execute as they should. Otherwise as I tried it with a different command, it also worked as it should. (not /execute but /say)
Also as I looked into MCEdit I noticed that every command block has one tile tick at its position but exactly these six command blocks, which don't execute, don't have one.

If it is a bug in block updates or in commands or the selector I don't know.

The commands are (ordered by ascending x or z coordinate):
facing north:

execute @p[rym=135,ry=161,rxm=-10,rx=15] ~ ~ ~ say ~-1 ~1 ~-2 
execute @p[rym=-198,ry=-163,rxm=-14,rx=21] ~ ~ ~ say ~ ~1 ~-2 
execute @p[rym=-162,ry=-136,rxm=-10,rx=15] ~ ~ ~ say ~1 ~1 ~-2 

facing east (not working):

execute @p[rym=-135,ry=-109,rxm=-10,rx=15] ~ ~ ~ say ~2 ~1 ~-1
execute @p[rym=-108,ry=-73,rxm=-14,rx=21] ~ ~ ~ say ~2 ~1 ~
execute @p[rym=-72,ry=-46,rxm=-10,rx=15] ~ ~ ~ say ~2 ~1 ~1

facing south:

execute @p[rym=18,ry=44,rxm=-10,rx=15] ~ ~ ~ say ~-1 ~1 ~2 
execute @p[rym=-18,ry=17,rxm=-14,rx=21] ~ ~ ~ say ~ ~1 ~2 
execute @p[rym=-45,ry=-19,rxm=-10,rx=15] ~ ~ ~ say ~1 ~1 ~2 

facing west (not working):

execute @p[rym=108,ry=134,rxm=-10,rx=15] ~ ~ ~ say ~-2 ~1 ~-1
execute @p[rym=72,ry=107,rxm=-14,rx=21] ~ ~ ~ say ~-2 ~1 ~
execute @p[rym=45,ry=71,rxm=-10,rx=15] ~ ~ ~ say ~-2 ~1 ~1