diff --git a/src/Datasets.jl b/src/Datasets.jl
index 7f3c6d8..a3a8fd6 100644
--- a/src/Datasets.jl
+++ b/src/Datasets.jl
@@ -112,7 +112,7 @@ function load_line(reflectance_file::String, reflectance_uncertainty_file::Strin
         good_data = .!all(img_dat .== refl_nodata, dims=2)[:,1]
         img_dat = img_dat[good_data,:]
 
-        if sum(good_data) > 1
+        if sum(good_data) >= 1
             if reflectance_uncertainty_file != ""
                 unc_dat = convert(Array{Float64},ArchGDAL.readraster(reflectance_uncertainty_file)[:,line,:])
                 unc_dat = unc_dat[:, good_bands]
diff --git a/src/EndmemberLibrary.jl b/src/EndmemberLibrary.jl
index f9fcbb6..13d24be 100644
--- a/src/EndmemberLibrary.jl
+++ b/src/EndmemberLibrary.jl
@@ -106,7 +106,8 @@ function load_data!(library::SpectralLibrary)
     try
         library.classes = convert(Array{AbstractString}, df[!,library.class_header_name])
     catch e
-        throw(ArgumentError("Could not read classes from endmember library.  Try adjusting class_header_name, or reworking the library."))
+        throw(ArgumentError("Could not read classes from endmember library using class key "*library.class_header_name * 
+                            ".  Try adjusting class_header_name, or reworking the library."))
     end
 
     try
diff --git a/src/SpectralUnmixing.jl b/src/SpectralUnmixing.jl
index 99f5735..a0fb9a6 100644
--- a/src/SpectralUnmixing.jl
+++ b/src/SpectralUnmixing.jl
@@ -150,7 +150,7 @@ function unmix_pixel(library::SpectralLibrary, img_dat_input::Array{Float64}, un
 
         if occursin("sma", mode)
             perm = get_sma_permutation(class_idx, num_endmembers, combination_type, size(library.spectra)[1])
-            G = library.spectra[perm,:]
+            G = library.spectra[perm, library.good_bands]
 
             G = scale_data(G, library.wavelengths[library.good_bands], normalization)'
 
@@ -190,7 +190,7 @@ function unmix_pixel(library::SpectralLibrary, img_dat_input::Array{Float64}, un
             for (_comb, comb) in enumerate(options[perm])
                 comb = [c for c in comb]
                 #G = hcat(library.spectra[comb,:], ones(size(library.spectra[comb,:])[1],1))
-                G = scale_data(library.spectra[comb,:], library.wavelengths[library.good_bands], normalization)'
+                G = scale_data(library.spectra[comb, library.good_bands], library.wavelengths[library.good_bands], normalization)'
 
                 x0 = dolsq(G, d')
                 ls = nothing
diff --git a/unmix.jl b/unmix.jl
index b0ae69a..b3fd94b 100644
--- a/unmix.jl
+++ b/unmix.jl
@@ -102,8 +102,6 @@ function main()
     end
 
 
-    endmember_library.spectra = endmember_library.spectra[:,endmember_library.good_bands]
-
     n_classes = length(unique(endmember_library.classes))
     output_bands = [n_classes + 1]
     output_files = [string(args.output_file_base , "_fractional_cover")]