Same thing here earlier with a chick and just now I bought things from a vendor and they weren't there when I got to my house to use them. The were there, just didn't show until I refreshed the page.
i had the same problem with the piggies. i kept incubating. i refreshed once and got two piggies in my inventory and the 3d one showed up about an hour later. the badge for incubating came with it.
Yes, this started at the end of the last test, because it happened to me. Seems like it is happening more now this test. Quick fix is to 'refresh'/restart, but that's just a temporary work around.