[TYPO3-mvc] Request hash (HMAC) checking failed

[Oliver Beck]

Hi List

I receive the errormessage: "Request hash (HMAC) checking failed. The 
parameter __hmac was invalid or not set, and objects were modified", 
when I send a form. the form contains dynamic generated links. I checked 
the fluid issue #6809 (http://forge.typo3.org/issues/6809), but this is 
two years ago...

Fluid Version: 1.4.1
Extbase Version: 1.4.3

Does anyone have an idea?

Kind Regards

Oliver