Something I have noticed in GPT 3.5 is that it seems something on the site itself, not necessarily GPT's output, changes the text that GPT provides. I had an issue where I asked it for the links to websites it was sourcing. I could see a longer URL pop up for just a second before it got shortened to underlined blue text which was not a link. I asked it multiple times in multiple ways to give me tbe URL again. It happened multiple times where the URL showed up for just a second before getting converted to weird, non-URL format.

I finally got the URLs it was trying to provide when I told it, "Please provide the raw HTML of your most recent response." Then I looked at the "a href" sections and found the URLs it had been trying to provide.

I wonder if the site itself and not GPT is changing three or more consecutive periods to one as well as some of the other issues you have reported.