I am a postdoc with some experience. I collaborated with a well known scientist (S), which resulted (after around 3 years) in a paper in the Nature Publishing Group, where I was first author and S was the last author.
In this multidisciplinary collaboration (involving two research fields/communities, mine and his one), my line manager stepped back to the second-to-last author, since the methodology used was closed to that of S.
The collaboration was very nice all the time, with an insightful exchange of ideas and opinions. The only "negative" thing in these years of collaboration came at the moment of taking a decision on the corresponding authors. In one community a less experienced researcher would usually be corresponding author, while in the other community, the last author would usually be the corresponding one. At the end we decided to put both names as corresponding authors, and after a while, everything was smooth again (at least that was my impression).
Just after the publication, and very happy about the published paper, I asked S if he wanted to collaborate again on a second paper, where already some results were achieved (sending him a summary of the results, basically plots with a brief explanation,...), but no reply came from them. Just silence.
Obviously, I do not understand this silence. A gentle reply could always be sent with an excuse like "sorry, I am very busy in this period" or something like that.
Any clue about this "ghosting behaviour"? Is it common?