Dualmining ETH/SIA on nanopool doesn't work for me. ETH works fine but SC gets job timeouts.

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ETH: 06/20/17-10:15:39 - New job from eth-eu1.nanopool.org:9999
ETH - Total Speed: 20.727 Mh/s, Total Shares: 5, Rejected: 0, Time: 00:18
ETH: GPU0 20.727 Mh/s
 SC - Total Speed: 0.000 Mh/s, Total Shares: 0, Rejected: 0
 SC: GPU0 0.000 Mh/s
GPU0 t=67C fan=0%
Socket was closed remotely (by pool)
 SC: Job timeout, disconnect, retry in 20 sec...
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I used nanopool's autoconfig generator, here s my config

EthDcrMiner64.exe -epool eth-eu1.nanopool.org:9999 -ewal 0xmyethwallet -epsw x -dcoin sia -dpool sia-eu1.nanopool.org:7777 -dwal mysiawallet -dpsw x -ftime 10

Am I the only one? I tried replacing -dcoin sia with -dcoin sc but same result.