Hmmm, well that's stumping! Thanks for the report.
VST3 is running fine in Reaper 32 and 64 over here, and that's both starting with and without the .ini file, so can probably rule that out now.
It looks to be a problem with VST3_Init. I see you're on Sierra, I'm running El Capitan. Could there be any difference between the OSes that might cause that?
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