Whilst I haven’t “set” any parameters it might not necessarily mean that something I don’t know about may be going on. It’ll be interesting to double check just in case (As or when I ever get to see the sky again. Apart from some very short windows all it has done here is rain for week after week. Very depressing) 🙁
However as a more quantative look at the fade here is a light curve I made of the first one I reported. The rapid onset is quite typical but the slower decay is clearly seen. As commented, this particular meteor is also one of the multi brightness peak class that occur.