The wood has come up a little but does not feel softer than any other seam on the roof where 2 boards meet. No leaks that I can see inside. This has looked like this for years but is more noticeable now. The wood moves a little when I push down on it back to the place it should be. I flattened it out with my hand and the raised up area in the edpm goes away. (So I’m hoping it’s air!! ) I’m going to watch to see if the bubble comes back up. Can not imagine how water could get in just a 2-3 foot part of seam. Only the AC is what I’m thinking. I just checked the torque on Ac bolts and tightened it 2 weeks ago. This elevated area does not extend to the roof edge. I could try to screw it down and cover screws with externabond, I could cut open a slit at the seam and inspect and reseal or just leave it be. I’m not doing anything yet till I get ALOT of opinions. So anyone with roof experience could tell me what they think it would be appreciated. Thanks for any advice.