How do I make sure my Auction Re-list at the end of it 30 day period, as one can never find it in unsold after it expires. I have lost 2 Auctions that way in the last 90 days.

So does an Auction Listed at $90 or Best Offer Qualify as Fixed Listin? It is just these 2 that never relist, the other 48 relist just as you say. https://www.ebay.com/itm/205351866712&&https://www.ebay.com/itm/205351888788 are the ones that will not relist.