The mode line flashes when selecting candidates if helm-follow-mode is enabled.

[Yevgnen]

When moving around a helm buffer (helm-occur) with helm-follow-mode, the mode line of the origin buffer and helm buffer keep flashing.

It seems that the focus of the window keep changing all the time ?

Minimum config for reproducing is

(require 'package)

(setq package-archives '(("marmalade" . "http://marmalade-repo.org/packages/")
                         ("gnu" . "http://elpa.gnu.org/packages/")
                         ("melpa" . "https://melpa.org/packages/")
                         ("org" . "http://orgmode.org/elpa/")))

(package-initialize)

(unless (and (file-exists-p (expand-file-name "elpa/archives/marmalade" user-emacs-directory))
             (file-exists-p (expand-file-name "elpa/archives/gnu" user-emacs-directory))
             (file-exists-p (expand-file-name "elpa/archives/melpa" user-emacs-directory))
             (file-exists-p (expand-file-name "elpa/archives/org" user-emacs-directory)))
  (package-refresh-contents))

(unless (package-installed-p 'use-package)
  (package-refresh-contents)
  (package-install 'use-package))

(setq use-package-verbose t)
(require 'use-package)

(use-package helm
  :ensure t
  :init
  (setq helm-quick-update t
        helm-move-to-line-cycle-in-source nil
        helm-split-window-default-side 'other
        helm-split-window-in-side-p t
        helm-echo-input-in-header-line nil))

Running an GNU Emacs 25.1.1 (x86_64-apple-darwin13.4.0, NS appkit-1265.21 Version 10.9.5 (Build 13F1911)) of 2016-07-25 with the latest elpa version of helm.

Any help will be appreciated! Thanks !

[xuchunyang]

I can reproduce.

[thierryvolpiatto]

Yevgnen notifications@github.com writes:

When moving around a helm buffer with helm-follow-mode, the mode line of the origin buffer and helm buffer keep flashing.

helm

It seems that the focus of the window keep changing all the time ?

Of course it is. When for example used with helm-occur, helm jumps in
other buffer, highlight the line and some regexps around and come back to
helm buffer.
I have commited a fix, seems better now, let me know.

Thanks.

Thierry

[xuchunyang]

I have commited a fix, seems better now, let me know.

Yes, it is better. Thanks.