convert_format error

convert_format('h5', filepath)

Error using mlbhv2/read_variable (line 291)
An error occurred while reading the variable, 'MLConfig'.

An error occurred while reading the variable, 'EyeTransform'.

An error occurred while reading the variable, ''.

An error occurred while reading the variable, 'forward_fcn'.

Invalid precision.

Error in mlbhv2/read (line 93)
                        val = read_variable(obj);

Error in convert_format (line 43)
            dest.write(src.read(varname{n}),varname{n},compress(n));