From the Problems Corrected section of the release notes for firmware 8.21.02.0002:
"From device command line, a ping to device's address configured in another VRF fails even though VRF route leaking is provided by static routes."
However, route leaking via static routes is now not working at all, i.e. the routes to the remote VRF do not appear at all in the local VRF routing table.
GTAC in contact with developers...