Multi-Selection Widget not marking cells as selected

I created this form with a multi-select grid, but when I tested on a cloned form, the selected cells were not marked as "unavailable" and I was able to select the same seats twice.  How do I fix this?

Upon further checking, the issue is caused by how each row header in the MultiSelect Grid in your form is created. There seems to be a conflict when there is a comma (,) in the row/column header text.

This is because the data produced by the MultiSelect Grid are separated by commas.

And the conflict happens when the data from selected cells from previous submission(s) is fetched. That is why previously selected cells do not appear when the form is accessed again.

Would it be possible for you to just remove the comma and replace it with something that would also separate the "Row" and its position?

In this clone version of your form, I have separated it by parenthesis — https://form.jotform.com/80395744147968

I hope this helps. If you have other questions, please feel free to contact us again anytime.