Hi, I have a problem with the incremental search in the methods window. Apparently the mapping of the delete and backspace key is not working, at least in the terminal. After a search that does not find anything, the tree does not expand anymore. I managed to find a workaround, which helps me, not sure if it destroys something else:
change the file tree-buffer.el

in tree-buffer-incremental-node-search
change (delete backspace) to (?\d)
add

(define-key tree-buffer-key-map (kbd "DEL")
         'tree-buffer-incremental-node-search)

instead of

(define-key tree-buffer-key-map [delete]
         'tree-buffer-incremental-node-search)