Beeding behaviour changed after update?

[Malicia Python]

I'd like to know if you have had similar experiences after the update. That your cats just seem like on trait strike. I wonder if the breeding behaviour was changed with the update.

Here is my sad story:
After the last update, I have had the worst 10 days in my breeding life. The first week ever I havent opened one single box. The cats keep throwing minimal boxes, like none sent out one hidden trait - with very few exceptions where I got one or two traits shown in one but not the other parent. Some of the cats made their second box now and I cannot see any improvement. I recall them being a bit weird after every update but after a few days they came back to their normal behaviour. I even took them back from the cattery to see if this might be the cause, but they performed just as poorly.