I had the exact same issue, I had a UI scrollbar bug that claude couldn't fix, it tried 4-5 different ideas that it was sure was causing the issue, none of them

I had the exact same issue, I had a UI scrollbar bug that claude couldn't fix, it tried 4-5 different ideas that it was sure was causing the issue, none of them worked. Tried the same with codex, it did a little better but still 4x times around. This is with playwright automation, screen shots, full access, etc..