There still should be no way for smoke or creosote to come out of the joints. I cant tell you exactly what is wrong but what ever it is could potentially be very dangerous.Ok so an update, I CCTV’d the inside of the stove pipe. I taped my phone to my brush set and slowly went up and down the chimney.
The video didn’t show any issues. HOWEVER, I think I have a blockage in the rain cap. Would that be the source of my problems?