I've been trying to fix a problem for three days now and still can't figure it out.
I'm trying to implement a search function in my website, which works properly. The only problem i'm facing is that i can't put it in into my menu template. When te following search tag, "{search resultpage=zoekresultaten search_method=post}"is put into a page template, everything works properly, but when i put the search tag into a menu template, and call that menu template in my page template with: "
{menu number_of_levels=1 template="testsearch"} ", it gives my the error that the search tag doesn't exist (which obviously isn't true).
Here's a screentshot of the page after submitting the page template with the menu template tag in it:

Even weirder tho, when i delete the search tag from my menu template, submit the page template, and than add the search template again to my menu template, there's no problem at all, and everything works properly. This isn't a solution tho, since i'd have to remove the search tag out of my menu template everytime i'd make a change to my page template.
My specs are the following:
CMSMS version = 1.12.1 rotinki (latest)
Search core module = 1.7.13 and hasn't been tempered with
I dont know if this problem existed in previous versions since this is the first time using this version.
Search config: default config, and works properly when the tag has been put into a page template, but doesn't work when put into a menu template.
list of modules:
CMSMailer 5.2.2
FileManager 1.4.5
MenuManager 1.8.7
ModuleManager 1.5.8
News 2.15.2
Printing 1.1.2
Search 1.7.13
ThemeManager 1.1.8
TinyMCE 2.9.12
TruetypeText 2.0.2
RSS2HTML 1.2.2
PHPMyAdmin 2.8.2-1
ModuleMaker 0.3.1
CGExtensions 1.50
FormBuilder 0.6.2
NMS 2.3.2
CMSPrinting 1.0.5
MicroTiny 1.2.9
AjaxMadeSimple 0.4.0
JQueryTools 1.3.4
CGSimpleSmarty 1.9.1
CGBlog 1.12.9
FrontEndUsers 1.29
CGContentUtils 1.5.1
Server specs:
centos 6
PHP 5.4.23