paren blink bug?

This bug report will be sent to the XEmacs Development Team, not to your local site managers!! Please write in English, because the XEmacs maintainers do not have translators to read other languages for them. In XEmacs 21.4 (patch 4) "Artificial Intelligence" [Lucid] (i686-pc-linux, Mule) of Sat Jul 28 2001 on barbar.josefsson.org configured using `configure --with-mule --with-file-coding' Please describe exactly what actions triggered the bug and the precise symptoms of the bug: Often when I debug (edebug) elisp code the highlight paren becomes fubar. What happens: placing cursor on a ) makes the parens blink very fast (much faster than usual). Also, when moving about in a function, the paren highlights sticks. Also, some parens seem to be hidden, and only show when I move the cursor over them. A screenshot is available from http://josefsson.org/xemacs214-bug.gif. The parens a few characters to the left of the cursor are ) parens but they aren't showed unless I move the cursor over them. Recent keystrokes: next next next next C-x b RET down up left left C-l M-. RET down down down down down down down down down down down down down down down down down down down down down up up up up C-_ C-e left left down left right right C-l left left left left up up down down C-e right left left left left left left right right right right left button1 button1up C-x o C-x 1 C-l left left left right right left right right right right left M-x r e p o TAB e r BS BS r TAB RET Recent messages (most recent first): Fontifying *mail to xemacs＠xemacs.org*... Loading emacsbug...done Loading emacsbug... Making completion list... No further undo information Matches: (when (re-search-forward ("INBOX.kdc-schema" (1 . 2)) error: "format specifier %d doesn't match argument type" Go... Matches: (defun nnmail-parse-active ()