I have a simple (14 lines) tgf file:
Balbo_Baggins Balbo_Baggins
Berylla_Boffin Berylla_Boffin
Mungo_Baggins Mungo_Baggins
Laura_Grubb Laura_Grubb
Bungo_Baggins Bungo_Baggins
Belladonna_Took Belladonna_Took
Bilbo_Baggins Bilbo_Baggins
#
Balbo_Baggins Mungo_Baggins
Berylla_Boffin Mungo_Baggins
Mungo_Baggins Bungo_Baggins
Laura_Grubb Bungo_Baggins
Bungo_Baggins Bilbo_Baggins
Belladonna_Took Bilbo_Baggins
I can open the file. But when I try to give it a tree-like, directed layout (executing the respective Menu item) *NOTHING* happens. The tree-like / ballon layout still works. Layout tree-like / directed *WORKED* earlier. Maybe this behavior comes from: I have tried to include additionally in the tgf file some 'comment nodes' (ordinary nodes with no edge participation but with very long labels with about 60 characters without any blanks); after these experiments (after loading the mutated tgf files), the tree-like layout did not work any more. I have installed the latest yEd version (my version was a bit outdated), but this does not help. It seems to be not a matter of the yEd installation, but the matter seems to be due to my profile.
I am an ABSOLUTE yEd fan! yEd is FIRST CLASS software!