Watchdog only once ?

@Sache, please read the conversation about Something is wrong - PICO, especially post #7 and adjust your code accordingly.

In a nutshell:

1. remove the save() from your code completely
   
2. put the rest of the code in a function called, for example, setup()
   
3. add function onInit() in which you invoke setup();
   
   

And you should be all set.