Rewire Reason

I just use Reason on Renoise for the Thor Synth and some drum samples.

But, I put the ReWire device then Reason, the instruments settings and choose Thor, but everytime I do this, in every step Renoise stops and in the info bar says

“Rescanning for new MIDI Devices”

for example, I put the Rewire then reason, STOPS RESCANNING, then instruments settings, Thor, STOPS RESCANNING, start playing in two seconds, STOPS RESCANNING, and then it’s working fine.

How can I disable this feature?
For live it’s quite a bother.

You can’t disable this. As soon as the ReWire slaves add/remove MIDI ports, we have to rescan for MIDI ports so that you actually can use them.