Scattershot troubleshooting is the most frustrating way of looking for solutions, can’t imagine why that would be any sane persons first option, or even before asking for another set of eyes.
Not really relevant to your comment, just that I’ve seen that myself a few times and it always frustrates me. Especially if the person does multiple changes so it’s hard to find the origin of any new issues
I admit it was quite some time since I last watched it but I remember quite a few B’s in the script