[TYPO3] Problems with languages in extension

[Lars Haendler]

Hi,

I have have a extensions with 5 different Plugins. They all share the 
same locallang.xml looking like this:


<data type="array">
	<languageKey index="fr" type="array">
	...
	</languageKey>

	<languageKey index="default" type="array">	
	...
	</languageKey>	
</data>


I changed my config to French as primary Language with normal Typoscript

config {
	htmlTag_langKey = fr
	language = fr
	locale_all = fr_FR
	sys_language_uid = 0
}


I now have the problem that some plugins of my extension use the default 
language and some the French Language. It look really random to me.

I cleared all caches and it is not a multilanguage page.

Has anyone a idea how I could debug this or maybe force a certain language?

Thanks
Lars