@paul_prior I took a look at the projects you belong to and noticed that half of them are collection projects - with those your observations should fall within the automatic catchment of the project unless your accuracy is beyond the geographical boundaries (or obscurred?).
For the two projects that are traditional (Ground Nesting Bees and Plants of Madagascar) there is a tutorial for adding here https://forum.inaturalist.org/t/adding-observations-to-a-traditional-project-wiki/13190
Let me know if that works for you or what could be changed.