Text limit applying to sibling text input (using groups)

I have a group of fields which have a image, title and textarea['limit_type' => 'character'].
The limit works for the first group, but every subsequent group after; the limit is applied to the sibling text input.

https://pastebin.com/6eHmNewB

Line: 53 – contains the field.

Screen recording for clarity: https://expirebox.com/download/62b5e87b28cdea95aa4eecdcd291acd9.html