I stated elsewhere that can no longer see YouTube links unless they have been posted in a quote box.
I now only see a completely blank space below the typed script. I used to be able to see links and successfully click on them by opening a reply box, but of late, doing so doesn’t open such links.
Yet occasionally, at a later date, the same link will appear as a YouTube screen.
I’ve not changed any settings for a long time yet this seems to be a recent issue. The only thing that has changed on my iPad is that the iOS is kept up to date.