heyho, Im new to SRBMiner since today. All my Vega Rigs are running fine so far...except one

Im trying to give each card manual settings, however it doesnt seem to work -> always get parseError. These are the settings im trying to use:
"gpu_conf" :
[
{ "id" : 0, "intensity" : 120, "worksize" : 16, "threads" : 2},
{ "id" : 1, "intensity" : 120, "worksize" : 16, "threads" : 2},
{ "id" : 2, "intensity" : 120, "worksize" : 16, "threads" : 2},
{ "id" : 3, "intensity" : 120, "worksize" : 16, "threads" : 2},
{ "id" : 4, "intensity" : 120, "worksize" : 16, "threads" : 2},
{ "id" : 5, "intensity" : 120, "worksize" : 16, "threads" : 2},
{ "id" : 6, "intensity" : 120, "worksize" : 16, "threads" : 2},
{ "id" : 7, "intensity" : 120, "worksize" : 16, "threads" : 2},
{ "id" : 8, "intensity" : 120, "worksize" : 16, "threads" : 2}
]
what am I doing wrong?
Thanks in advance