teamredminer amd r9 270x

hi, i tried to mine some weeks ago, now i got monero mining running on my cpu, so it would be a waste to not mine anything on the gpu! I like the Ravencoin project and want to mine it, but i cant get it working with teamredminer:

Auto-detected AMD OpenCL platform 0

Auto-detected AMD OpenCl platform 2

Excluding OpenCL device idx 0 on selected platform2, duplicate device.

Initializie error, unknow platform 03fe

Failed to initialize device idx 0 (-20)

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Does the software see "2 gpus" ? I only have one.. googled the error but nothing helped.

Would be awesome if anyone could help, thanks in advance