I have two trees, one quite large (88000) and one under 5000 that holds "only" my direct ancestors ...
It is impossible to use the same image in both trees, if I tag myself in one tree it dissapear from me in the other tree and vice versa.
I have even made a different album and copied images over there and renamed the image in the other album, but no matter what I do, I can only show the same face in one album ...
Is this by design that you think that people can't appear in different trees ??
Would love to hear a workaround besides creating two different copies locally and uploading with different names and put them in different albums with different names, will I then be able to show the same faces in both trees?
Here is what you should be able to do. Go into the photo, and tag the first person in the first tree. Then click on the 'add another person' button that you see on the left of the photo. Add the name of the person from the second tree. In this way, the people from both trees can be tagged on the same photo.