I think the new format of the flash partitioning is OK, we expect 64kB of storage.
The German things are for the OTA - but I don't remember that I ever put OTA into the WiFi module - I think the memory might be a bit tight for that.
There is one other thing to note if you are flashing the WiFi module yourself: Not all flash types are immediately compatible with the ESP8266 code. In the past, I had to modify the core Arduino code to make it work.
Does it seem that everything is working, but the configurations are not saved?