Hero res bug?

Has anyone else come across this? I've been having problems lately getting my heros (or indeed henchies) to res in the middle of a battle - and they're only using res signets, not hard res. When I checked yesterday outside the sunspear hall, I found that if I'd tethered them to the map with the flag, they started ressing but interrupted themselves continuously. When I removed the flag, they finally managed an actual res. Quite weird and not at all helpful!

Yes, the res sig use has been there for almost a year, and heroes never res if you've flagged them somewhere. Basically, since res sig is much faster then other spells, it'll be finished casting long before another res is done. Two henchies may be ressing at the same time, but the signet will finish first.
As for the flag, they'll always walk back to the flag if it's outside (approx.) the inner half of their aggro circle. If you want them to res someone you have to flag them to an area near where they can cast the spell, then have them res.

I just disable the res skill and manually cast it myself. Also, make sure they are off passive mode, so they continue the cast.

Neither of these heroes were on passive and the corpse was pretty much beneath the flag. Both were trying to use signets and failing.... Oh well, just one of those weird things I guess :S

It's too bad you can't do this with Henchies as well. I wonder if we'll ever get to control them more too. I'm getting so used to have so much more control over my heros.. I'd love to do some of that with Henchmen too.