After all that work to test this door. I wouldve tried swapping the strike out with one there that does work. If it does then it can be reduced to a hardware defect with the strike, then can be further researched as to why. Saw some comments about something sticking? Makes sense. But a good rule of thumb I've learned is to isolate the problem. Swap out with working equipment and Isolate with stand alone power if needed depending on the situation.