So this one is about the weirdest thing I've ever seen, but let me try to explain. I have a web page set up with multiple accordions (like these, I used this exact code): https://www.w3schools.com/howto/tryit.asp?filename=tryhow_js_accordion_symbol
Inside each of those accordions is a grid layout, like this one: http://www.marcorpsa.com/ee/t2716.html
Inside each grid are two inputs (uniquely named across the entire page - no repeats). When I submit the form, none of them are submitting their updated values, except for the inputs in the grids in the last accordion. If I do a var_dump($_POST), I see where the inputs are being submitted, but they don't reflect any values that were put in by the user into them (they're just submitting whatever was in them when the page loaded).
Does anyone have any ideas why this could be happening and what in the world to do to fix?