[radiaL] vst and separated tracks

i've installed radial 1.5beta version , and now i can load pluggo vst , but they don't work!
I launch from Effect Window a plug in , but this work in a same way...baypass mode.
If i launch Radial lfo, and i choose message from the upper pop-up menu, i can see a error message:

the document is radial_
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