I saw this aircraft today at Heathrow so added it under My Sightings only for the site to say it wasn't found in the database yet if I search for G-NEOZ which is the aircraft I tried to add in the first place. it somehow finds it as it has been sighted by other members.

Indeed the site states that aircraft marked in red are not linked to a entry in the site database but this is obviously a rogue issue if it shows up as being sighted by other people.

NOTE: Registrations shown in red are not linked to an entry in our database. This means they will not show as seen in airline fleet listings.

Also as to editing reported aircraft, someone mentioned this:

Go in "my sightings", find your wrong log and then edit button.

This isn't the most easiest of methods to use, I had to click on the rogue aircraft than click delete for it to be removed from my log for the day.

It would be so much more easiest and more user friendly if those behind this site actually just put a simple Edit button next to the View button when showing all entries for a specific log which would not only streamline the process but make it so much more effective as the current method is so awful, it shouldn't have been included.

did you have a space or tab after or before your logging , happened to me in the past easily done but hard to spot

Paul