Error on Registration: Session expired or cookies are not enabled in your browser.

Hi JoomlaPolis team and community,

On registration I get the message:
"Session expired or cookies are not enabled in your browser. Please press "reload page" in your browser, and enable cookies in your browser. Please refresh/reload page before filling-in."

CB version: 2.0.5
Joomla 3.3.6

SITE INFORMATION :
OS Linux
PHP 5.4.35
MySQL 5.1.73
Cache On - Conservative caching
GZip Enabled

It worked quite well for some time, but this issue started either with update on CB 2.0.4 or CB 2.0.5.

Already tried:
Complete install with pkg_communitybuilder_2.0.5+f26954917.zip
Switched off 'Spoof Checking' in 'Integration'
Tested with Safari and Firefox

Any ideas, how to get this fixed?

My users have experienced the same error when requesting passwords. Will try to verify on a clean install or clone site.

PS: forge.joomlapolis.com/issues/5031
It looks like kyle solved a related issue recently. I'll try to test the nightly built.

Installed CB 2.0.6 today and switched spoof check function off, but still having the same issue, that new registrations are not working. Still getting the message: 'Session expired or cookies are not enabled in your browser.'

Seems there was a conflict with the (outdated) extension 'XMAP' from www.jooxmap.com .
After removal of XMAP the registration with CB is working again.