As you were sending that I was taking the trigger frame apart. The sear was not centered so I moved it over. Looked at everything and it was all operating fine. Put it back together and no luck.
The screw under the trigger that you are talking about will not budge. I need to get a different Allen set that is not a single unit but individual keys so I can put some pressure on it.
I have a 45 frame I can try. The one that is on there now is a 86 frame that I bought on pbnation.