What I have done to work around this bug, is to attach something else from my inventory (a random box, etc.) and see if the DROP option is there. If it is, then I've been picking up and cuddling my kitties, if it is not, I only play with them. So far so good, except when I accidentally logged out with one attached and the drop option wasn't there when I logged back on, but so far, a good tester for me