Auto complete TAG not working

[suryaaab]

I have 2 sites and since I updated WP (4.6) the auto complete TAG don´t work.
In old times when I started writing the word tag a list of suggestion words appear, but now nothing happen.
I updated do 4.8 but the problem continues.

[suryaaab]

Nothing happen when I start typing the word at TAGs area. Nothinf suggestion words appear. The tag I used exist at the TAG list.

[afercia]

@suryaaab thanks for your report and welcome to Trac! The autocomplete suggestions work for me, just checked on WP 4.7, 4.8, and on the development branch. Does it still happen with all plugins disabled and a default theme (for example Twenty Sixteen or Twenty Fifteen) activated?

[suryaaab]

Hi. Thank you for the return.
The problem still happen with clean (new) WP site.

[pratikthink]

tested and does find any issues with fresh install of 4.8, it works fine for me.