I've left 4 lighthouses scanning for some time and no luck, is this normal or maybe a weird interaction with another mod (I'm using all planets lite) ? The Pelagos briefing in the tips menu also don't talk about titanium. I see it in the tech tree, the factoriopedia, and there are corals that give titanium dust, but besides that all I can find is more methane.
https://puu.sh/KJi8z/b6f23d3486.png
I'm on 0.48, there are no mod settings or startup settings that look like it could affect the spawns. I tried creating a new game and looking at the generated maps. I see orange dots sometimes which I assume is the titanium sludge, but it's not guaranteed to spawn within the preview.
Right now I'm going to roll with it under the assumption that it's very far away, but I doubt it's intentional, I already scanned this planet more than I did Nauvis.