Run InitializeConstants only at the end of data load.

src/MATLAB/+Load/OpenData.m

@@ -136,7 +136,6 @@ switch answer
             
             save('LEVerSettings.mat','settings');
             
-            Load.InitializeConstants();
             CONSTANTS.matFullFile = [settings.matFilePath settings.matFile];
             
             if (~isfield(CONSTANTS,'imageNamePattern') || exist(Helper.GetFullImagePath(1),'file')~=2)