With "gzdoom-4-10-0" doom secret finder version 8 during the game takes away the item and does not search. I do not need UZDoom. Version 6 "jpfinder" worked fine! Please, "Doom secret finder" version 6! 😞
Okay I've added a separate download called "jpfinder_v6.zip (old version for back compat)", give that a shot - and if that doesn't work let me know what error(s) you're seeing.
