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I have a form in Google sheets where I send dynamic data from the sheet.

I loop sheet data and create same number of blocks in a form as number of my headers.

I have a first block of elements written in html. The rest of blocks I clone from the first one, clone its IDs and send my sheet titles to elements of the form.

First title I write (with the last title from an array) to the only block existing before looping.

Then I clone that block giving a clone new titles and trying to insert clones before the first block ([0]) but it gets wrong and overwrites my first hardcoded title.

It appends the blocks in random number, so I can't get my titles in the right sequence like "1,2,3". It's always like "2,1,1" or "1,3,2" etc.

I've tried different variations of appending the cloned elements (like motherDiv.appendChild(clonedRow) and motherDiv.insertBefore(clonedRow, motherDiv.children[0]), but cannot get it to work properly.

Please point to what's wrong here.

Here's the code and the screen: