Reason rewire not working in PT12

Hiya,

I recently upgraded into a brand new MacBook Pro with al the trimmings.

I used to use PT10 with Reason 5 (and before that PT 8, 7, 6 etc and Reason 3) with multiple reason audio channels coming into sessions, driven by midi from PT.

I now have PT12 and Reason 8 in Yosemite.

Reason does not come up in my instruments list in the PT inserts. Waves rewire does come up, so Rewire must be working to some degree.

Reason comes up beautifully as a fully-functioning rewire companion to Ableton Live 9 ... so Rewire must be working from Reason's end of things.

I have read of numerous instances of Reason/PT rewire difficulties on this forum, but the symptoms seem to be different to mine.

Can anyone help me here? I assume that both PT12 and reason 8 are 64-bit, so there should be no incompatibility there. Many postings suggest opening the "get info" window on the Reason app icon and forcing a bit depth. I get no such options.

Is there something missing? Any suggestions will be received with deep gratitude.

thanks

Andy
Maleny
Queensland