[TYPO3-mvc] Caching in 4.6

[Tim Schoch | GSTALTIG]

Hello List

We have a serious problem with the new PHP cached views with one of our pages.

In the BE Module we often get errors like the following:
Fatal error: Call to undefined method FluidCache_Myext_Product_action_summary_e2006b17a5e054dc80b7c64af3f4d80239f2be31::section_a710cfa8257997057491eaaf635960f3b0f630ea()
in /home/httpd/vhosts/something/T3src/typo3_src-4.6.0/typo3/sysext/fluid/Classes/View/AbstractTemplateView.php on line 260

These errors occure both on large cascaded views and on simple edit views with not more then 3 or 4 nested partials/sections.
When we clear the cache, it renders once, and then the error reapears.

Our setup: TYPO3 4.6, F/E 1.4, 164mb, PHP 5.3.x
And to make it even stranger: On my local Debugserver everything works just fine, with only 128mb ram...

Side note: An other website on the same server with TYPO3 4.5 and F/E 1.3 runs fine (and has some complicated views too).

Any idea, what this could be?

Thanks, Tim