As far as the male I have seen male losing more than that and still be fine it's really a matter of managing your male well, make sure he gets rest, don't over breed and make sure it is well hydrated, pair when you have storms etc, a little tip males under 1000 grams I keep them in 15 quarts even V18 tubs during breeding season you might want to do that if you do not already.
One thing I have highlighted and that can play a roll in the lack of action "you moved", I can tell you that moves are often bad news when breeding especially right prior or during breeding season, I moved a few years back and it was the worse season I had. I know breeders who will not even move females to another room or even make dramatic changes such as switching bedding type during breeding season.