Hi Philip,
Could you post this to support first until we are sure there is a bug? I am pretty sure it is not as simple as confusing transition count with precursor count. When you do post it to support, please post a better screenshot. This one is blurry enough to be difficult to read and it is missing the status bar which would show the number of peptides, precursors, and transitions.
If you are willing to supply the file itself, you can use File > Share to create a .sky.zip file and if that is <50M you can attach it to the support request, or you can post it to:
https://skyline.ms/files.url
Thanks. Great to see you are using Skyline.
--Brendan