Flickering when starting new search with /

[balta2ar]

When I start new search (map / <Plug>(incsearch-forward)), current highlighting is cleared immediately and screen flickers as if <C-l> has been pressed. I'm using vim -g (no problems in console version though).
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Dec 1 2014 12:50:52)
Included patches: 1-540

In .vimrc I have set novisualbell and set lazyredraw but they don't visually change anything.

Also, highlighting is cleared as soon as I type /. Is it possible to clear it only after I entered at least one symbol?

[haya14busa]

When I start new search (map / (incsearch-forward)), current highlighting is cleared immediately and screen flickers as if has been pressed. I'm using vim -g (no problems in console version though).

Thanks for the report. it's related with this library issue #107. (taked in Japanese but the issue is same.)

Also, highlighting is cleared as soon as I type /. Is it possible to clear it only after I entered at least one symbol?

It's possible. I'll consider to change the behavior, thanks 👍

[haya14busa]

I fixed it. Please update incsearch.vim. 🎉

[balta2ar]

Yay! It's smooth now! Thank you very much, @haya14busa!

[balta2ar]

Also, highlighting is cleared as soon as I type /. Is it possible to clear it only after I entered at least one symbol?

It's possible. I'll consider to change the behavior, thanks 👍

What are your thoughts on this part?

[balta2ar]

More generally, highlighting is turned off if I press Esc, which is confusing. If I canceled my search, I'd like my previous highlighting to be restored.

[haya14busa]

Sorry I forget highlighting related issue. I create new issue #74