Arduino library to play MOD, WAV, FLAC, MIDI, RTTTL, MP3, and AAC files on I2S DACs or with a software emulated delta-sigma DAC on the ESP8266 and ESP32
Found the problem. I used the MDCallback from example StreamMP3FromHTTP which did not work and caused sometime crashes. Now I use the MDCallback from Webradio example. This works fine now.
I use AudioFileSourceICYStream to play web radio stations with success, but I dont get any Metadata events.