I think the error should be due to the DataTable initialization in blocks.js attempting to reinitialize during certain conditions (such as cache conflicts caused by rapid clicking). Adding retrieve: true should be a choice without negative side effects. Since it hasn't been tested in an instance, I hope the explorer dev could conduct a test.

It has only been tested in the browser's console.

before:

console.log("Initializing DataTable...");
$('#blocks-table').DataTable({
});

after:
console.log("Initializing DataTable...");
$('#blocks-table').DataTable({

retrieve: true,

});