Nay, its a bug in the program. I've went through many builds and all had the same issue, some weren't as frequent and others were intermittent.
The tweak (if it was ever made) would have to invole hitting the Sync portion 2-3 times, I know the latest build requires 3 hits of the Sync to get it working again.
Much like this below:
1st= Sync/Disconnect
2nd= Sync/Connected/No Push
3rd= Sync/Connected/Push
No it won't label it like I did but knowing that, makes it less of a guessing game when getting it working again.
BTW I must have alot of Tweaks for the battery cause Seven never gulped my batt down, but to be fair I have Batt/Powersave Tweaks & a 3200mAh battery.
Maybe something like MortScript would work? I dunno....