Hi there, just to let you know this issue (https://github.com/xbrowsersync/app/issues/58) has been resolved for the upcoming v1.5.0 release.

I've been working hard to get all of the reported syncing issues resolved and am currently doing extensive testing to ensure that v1.5.0 is stable as a rock. If you'd like to check it out, you can get the beta here:

https://github.com/xbrowsersync/app/releases/tag/v1.5.0beta