Cell contents reference from a non-cell array object. Indexed reference of a CustomProperties object is not supported. Changing the length of a custom per-variable property is not supported. Invalid custom property name. Create a new custom property with ADDPROP before adding data. Unable to combine data types ''{0}'' and ''{1}'' in custom property ''{2}''. Unable to load the saved CustomProperties because it is incompatible with this version of MATLAB Unable to concatenate the custom property ''{0}''. Custom property containing a cell array concatenated with a non-cell array resulted in conversion to cell, making the number of elements inconsistent with the number of variables.