Actually I think v7.14 creates several issues with interfaces and VRF.
I have issues in my config with IPIP interfaces not working properly after v7.14.
Basically the IPIP interface does not get installed in the VRF table, but it stays in the main routing table.
Also at startup I get an error that using VRF while setting the IPIP interface (in the remote address side) to check whether VRF is enabled, which it is.
And finally also IP service being set on VRF does not respond to requests anymore.
So I switched back to 7.13.5 for now and everything returned working fine as before.
I have reported this both to support and to 7.14 forum post (http://forum.mikrotik.com/t/v7-14-3-stable-is-released/174007/1); I can see others have the same issues with VRF and some type of interface.
In my case VLAN and L2TP worked fine with VRF and 7.14, but not IPIP tunnel.