Not the same problem, but I also found unexpected (at least for me) interaction between USB Serial and I2C on a Core. Workaround was to delete Serial.print() statements, but I don’t have an explanation for what was happening yet.
Not the same problem, but I also found unexpected (at least for me) interaction between USB Serial and I2C on a Core. Workaround was to delete Serial.print() statements, but I don’t have an explanation for what was happening yet.