Searching for Registration within your photos

The searching for a registration within your own pics isn't working. I went to look up N74190 and it shows I don't have anything.

Yet I have 2 in my gallery.

Weird that it works for MIL registrations though.

You entered NL74190 instead of N74190. Could it be the reason?

Sorry Ken, just getting back into this. Sorry I missed I had the L in there instead.