Some of my collection has disappeared and just doesnt show up anymore. Few games for several systems.

Please give me a link to your collection and what is missing and I'll look into this for you.

https://www.pricecharting.com/offers?status=collection&seller=erup32awm2zxc5k5slts5jift4&sort=highest-price&category=video-games&console=G15&condition-id=all missiing nfl 95, sports talk football a loose copy of nhl 95, altered beast, truxton and others ffrom genesis alone.

I don't see any reason that those would be missing.  Sorry.  Please add them back in.

I see Truxton was listed for sale on the site, but has since been ended.

https://www.pricecharting.com/offer/nrzfe3fy6fcsuymcahqdokvuw4

Could that be the cause?  It was closed on Jan. 22nd after bring listed April 4th.