Both on this forum and mine....

 

I have no such problem. Also in the mine site

Strange 

 

just tried Chrome, same result 

Same

Can't search this site.

23 minutes ago, daveoh said:

Strange 

Here at this site there is a problem search. In my image is then click Activity - Search.

I saw on your site - also problem search.

In my site I have no such problem

I have a similar problem on my IPS 4.1.2 in french language

If I ask for a search, it give me anwers only based on Gallery or members content. No Forum content returned although there are obvious answers.

I asked for re-indexing content in admin area, allways the same

I the System Error logs there are worrisome lines like :

Wed, 04 Nov 2015 12:26:57 +0000 (Severity: 2)
194.98.70.140 - http://www.my-nice_website.com/forums/search/
ErrorException
2: array_keys() expects parameter 1 to be array, string given
#0 [internal function]: IPS\IPS::errorHandler(2, 'array_keys() ex...', '/home/my-nice_websit...', 684, Array)
#1 /home/my-nice_websit/public_html/forums/applications/core/modules/front/search/search.php(684): array_keys('14')
#2 /home/my-nice_websit/public_html/forums/applications/core/modules/front/search/search.php(43): IPS\core\modules\front\search\_search->_form()
#3 /home/my-nice_websit/public_html/forums/system/Dispatcher/Controller.php(94): IPS\core\modules\front\search\_search->manage()
#4 /home/my-nice_websit/public_html/forums/system/Dispatcher/Dispatcher.php(129): IPS\Dispatcher\_Controller->execute()
#5 /home/my-nice_websit/public_html/forums/index.php(13): IPS\_Dispatcher->run()
#6 {main}

I opened a ticket support yesterday, but no feedback from the staff at this time

Broken for me on this site at least.

Fixed for me in 4.1.3.2 + reindex

weird. I haven't had this problem on my site and yet I did on here and test site

Just to add fixed for me now with 4.1.3.2