Did I mog ts duc with the gargantuan dizzer

First of all, thank you in advance for any advice or messages. I’m a bit of a beginner when it comes to mechanics.
A few days ago, I removed and then reinstalled the exhaust (a titanium Akrapovič) due to some legal issues related to the country I live in.
A few days have passed, and I noticed that there is a gap where the muffler and the header pipe join. I’ve come to the conclusion that the problem is coming from the header, more specifically from the area where it comes out of the engine. I hope you can see it in the video.
I’m not sure if that movement is normal or how I could adjust it.
Thank you very much!