What helps is to switch to the re-added language (English in my case), purge all these double entries e.g. "Niederlande" and "Netherlands", and re-add the language here again.
That looks very messed up
I can work-around it as described except the main language. I can't purge it because there are customers conected it.
There are some questions I have:
1. how can I fix the problem with the first language (German)
2. how can I fix this mess in general?
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