I am running into a problem with the HBsurface node. When I attach a tree which starts with some empty branches I get the following error.
When I prune the same tree and attach it to te HBsurface node, the error is gone.
When I now reattach the unpruned tree to the HBsurface node the error does not come up again. Problem solved you could say. But everytime I reopen the file the problem reappears. This is quite disturbing.
When the tree starts with a populated branch there is no problem.
Is there a way to fix this problem? I would like to keep the tree structure intact.