The Arduino documentation provides two examples to store data in the EEPROM.
https://www.arduino.cc/en/Reference/EEPROMPut stores data in the EEPROM and the EEPROMGet example reads the data back and writes it out.
These examples work fine on my Arduino Uno, but on my ESP8266 (NodeMCU) the EEPROMGet example code is unable to retrieve the data EEPROMPut should have stored previously. Instead it's just returning some random bits and bytes.
Any ideas? I haven't found anything about known incompatibilities related to the ESP8266 boards...