Error when assigning table columns in parfor loop with some worker numbers

I am using the latest Matlab 2020a.

The code below only works when n <= the number of workers or when n is a muptiple of the number of workers.

For example, when I set my pool worker to 12, it raises "Cannot create a table variable with a discontiguous index." error.

But it works perfectly after I set my pool worker to 7, or change n to something less than 13.

It seems that some idle workers try to fill in non-existing columns when other workers are doing the last iteration.

Does anyone have any idea about this?

n = 14;

t = table('Size', [1, n], 'VariableTypes', repmat("double", [1, n]));

parfor i = 1:n

t{:, i} = i;

end

By the way this is not a problem when filling table rows like the following example, with any n and worker number.

n = 14;

t = table('Size', [n, 2], 'VariableTypes', repmat("double", [1, 2]));

parfor i = 1:n

t{i, :} = [i, i];

end