Channel 6 LFE - Drag dot in surround pannier centre (and pan LFE to 0gb).
If you do this, there will be output on LFE and Front Left/Front Right, but there only should be output in LFE. If you pan Centre to 100% there will be output on LFE and Centre - that's also wrong. I also don't know how to get output ONLY on LFE!
Besides, this is the right order for your Monos:
1: Left
2: Right
3: Left Surround
4: Right Surround
5: Centre
6. LFE