Hello,
Setting the BPM to External does not update, in this case, the default value of 120 to Bitwig's current 110 BPM. However, it does react and gets in sync. The only problem is that the shown BPM value in Waverazor does not change.
BTW, is there a way to attach screenshots ? I guess it could be possible to use the 'image' option icon and post an image on a site, giving the URL as a parameter, but that's a bit longish.
Cheers.