Default KK 4.4.2: OpenVPN can't connect: TUN is missing

Used the same config with OpenVPN für Android by Arne Schwabe on Stock Rom and on KatKiss 4.3 - Worked like a charm.

Now Upgraded to KK 4.4.2 (#17) and I can't connect any more.
My last line in the log is: "Got unrecognized command>FATAL:ERROR: Cannot open TUN "

Seems that /DEV/TUN is missing in KK4.4.2

Here's the comment from the OpenVPN für Android developer:
"Try to reboot your device. If that does not work your ROM is broken."

So it must be an ROM Issue with KK 4.4.2 #17.

Any Ideas ?