Decided to give SOG another shot with a PowerLock. I think SOG needs to raise their game. Their tools have so much going for them and still seem to fall short of other makers due to what seems like a simple lack of effort/attention to detail.
Mine is the same way. I have the worst trouble trying to get the scissors to lock/unlock properly ...
...One fix, which I have not applied yet, is to glue a small bit inside the handle, directly beneath the knife blade. That bit should act as a "stop" and prevent the knife from folding too far into the handle.