The only difference in the ESS plugins 184 and 186 is that 186 has the PROBE enabled where as 184 didnt, and if i recall homing was added in 185, you have to remember when downgrading a plugin this could be bad as there might be a new way of doing things within the core and the old plugin may not have this implemented.
If you can explain what is different would help, if you follow the instructions Andy from Warp9 made in the link you cant go wrong.
DazTheGas