Rewired Sibelius 7 drifts

[LukeHoward]

I have Sibelius 7.1 rewired into PT 10.1. The track in Pro Tools has tempo changes every bar (tempo map follows a performance not to a click). It drifts massively, seems to stay in sync for a bar or two.

Is this a known issue? Makes it kind of useless.

[LukeHoward]

Originally Posted by LukeHoward

I have Sibelius 7.1 rewired into PT 10.1. The track in Pro Tools has tempo changes every bar (tempo map follows a performance not to a click). It drifts massively, seems to stay in sync for a bar or two.

Is this a known issue? Makes it kind of useless.

Seems to happen without tempo changes and with only one track in the Pro Tools session (the Rewire track). I'm presuming there's something weird about my configuration because one would presume this would be something Avid tested.