edit: case solved
it was the setting of what type of an item to search. I changed it to search all and now I can see all the BPCs.
There used to be so many different blueprint copies, I mean battlecruiser and battleship BPCs.
They were really saving isk because what’s the point of a 600mil BPO and researching it by myself when I can get a 10/20 BPC for even under a million. I have never even made 600 of the same ship.
My interests went elsewhere for some time but I check it lately every now and then and the market is dead? For every larger ship it appears?
Do I have some sort of error? My search settings appear to be correct, I even widened the search to low and nullsec.
Some people even used to say in the past they make more with selling BPCs than actual ships.