Talk:Other Cave Software
From Fs_wiki
Poit 1 - "The process is inherently harder than in Tunnel because you are having to edit two separate drawing structures at the same time."
Did you check the -debug on switch in layout section of therion?
If you use this switch, you'll see the original state of connected scraps, connected scraps after loop closure and the finel stage after automatic connecting. It is quite easy to "debug" the overlaping connections by this way.
Marti Sluka