How to set a FXpreset ON at sampleset load?

Hi, I have FXpresets working great if I select them manually via the menu or web interface, but I can't figure out how to make a sample set which loads with the effect already switched on by default. 

I've tried setting %%fxpreset or %fxpreset - or both - in definition.txt but nothing seems to make the sample set load with the FX preset switched on.

e.g. should this work as a definitions file? IsntEcho is the correct name of valid FXpreset in my FXpresets.csv

Code:

%%mode=keyb
%%velmode=sample
%%release=2
%%gain=.5
%%fxpreset=IsntEcho
%velocity=1
%midinote*.wav
%fxpreset=IsntEcho

Not sure if it's related but I just observed that changing FXpresets in the menu seems a bit oddly behaved too - for example if I choose my echo or long reverb preset, it kind of gets stuck on them - changing to my simple overdrive preset does nothing, changing to 'None' doesn't turn them off, and only choosing 'Default' goes back to no fx.


Any help much appreciated thanks!!