Ok, I accessed your account. All the Meeting records are there, including the 10/7/19 one you need now.

The listview you were looking at was Recently Viewed. Since you had only recently viewed the Mtg-011 Meeting recod, that was the only one showing in that listview. Back in Step 29, while you were looking at the All Meeting Data listview, you were supposed to pin it so that would be the one showing whenever you went to the Meetings tab. Somehow you missed that step so Recently Viewed was still pinned and that was what you were seeing.

So now, look toward the upper lefthand corner - it tells you what listview you're viewing and it's a drop-down menu that let's you choose other listviews. It's currently showing Recently Viewed. Click that, and choose All Meeting Data and you will then see all the records, including the 10/7 one. Then pin it by clicking the pin icon, so it will be what is showing whenever you go to the Meetings tab.