Thanks for all your help chippy and others looking - managed to solve it by sheer luck and no longer caring if it got destroyed

May have to ask manufacturers if there is a solution

Yes lol tried that too - again seems unrelated to any other part of the mechanism like its its own separate thing - odd as had replaced all the other…

Thanks chippy - unfortunately yes have tried that even reconstructed the entire latch within the door in hopes it would click it but nothing seems to budge that one area…

Replacing locks from our fixer upper house when always reliable junior and his friends decided to shut the screen door when it wasnt fully completed. Now I cant seem to…