I installed FOP2 v2.11 on Elastix 2.0.0.42; FreePBX 2.7.0.9. Even after installing the FreePBX module, I did not have any buttons (not even the menu buttons). So I started to investigate how the buttons are generated and found the following:
In the file autoconfig-buttons-freepbx.sh, line 36 the mysql command has an option -N. It directs mysql to skip column names. Since there are no column names none of the sed commands work correctly and the output is a mess, making FOP2 crazy. When I removed the -N option, buttons just appeared.

Is is a real fault or it is intentionally made like this and it usually works with -N, only my system misinterprets it in some way?

Thanks for the tool, by the way :-)