Fixed error caused by 1D signals
Fixed error caused by 1D signals


Former-commit-id: 82336c9fa00bb8264d363e79959c2abe312c1d8b
cbrnr/scot,cbrnr/scot,mbillingr/SCoT,mbillingr/SCoT,scot-dev/scot,cle1109/scot,cle1109/scot,scot-dev/scot