I'm a big Arturia fan - Microbrute owner.
Submitted crash reports via support but thought I would share here since I have not received an acknowledgement or a response.
Downloaded demo - worked fine in Logic at least initially - but ended up crashing constantly in Numerology 3. Numerology 3 (which did respond to crash report) said crash was due to SEM V and even gave me the specific call to provide to Arturia.
This crashing is frequently accompanied by the following error dialog box. Happened to the point where I couldn't even open N3.
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Mac Mini Server 2011, Core i-7, Mavericks, 8gb RAM.