Unfortunately I cannot just 'fix' something without something more tangible than that, because it doesn't appear to be broken and that you should still be able to continue with the current progress. The first person posting about this bug has game data that tells a completely different story from your issue and Dannymj1's, and Dannymj1's quest progression is even shorter than yours.
You mention 3 players having this issue, but I have seen dozens of players call this a bug and when I go with them in game and show them where the switch is hidden, they quietly continue their quest... Please, guides are just guides, they may not be complete and I wouldn't encourage someone to rely 100% on one. Actually I just checked the first guide I found on the quest and it actually does mention what to do at your current progression, which I think is a shame, but anyway.
Like I said, I can't fix something that doesn't look broken. What I'm allowed to do is to manually reset your quest and you are welcome to make a recording of it. Let me know how you would like to proceed.