This has been resolved in the latest master git branch of Hyperbole and
will be integrated into the next release.
If you replace this function in "${hyperb:dir}/hpath.el" with this version, reload and
then modify your global button, {C-h h g m}, so the shell command is
correct, and then re-activate the button it should work.
-- Bob
(defun hpath:trim (path)
"Return PATH with any [\" \t\n\r] characters trimmed from its start and end."
;; Trim only matching starting and ending quoted double quotes (must
;; be a single line string).
(setq path (string-trim path))
(when (string-match "\\`\".*\"\\'" path)
(setq path (string-trim path "\"" "\"")))
path)