I have a strange problem in drupal. When I try to change the _any_ parameter in the drupal admin (performance caching, temp-directory in the file system, default filter under filters, etc.), I get a message that the changes were saved successfully, but the values don’t to change.
I don’t know where to start debugging, since this is such a common problem. I checked the rights of all files / folders and the database connection. Seems beautiful.
Has anyone experienced such a problem before?
edit: There is no error entry in the drupal log file.
edit 2: I just turned off each Contrib module. However, I cannot make any changes (for example) to the cache mode.
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