i2c slave mode

Hello.
Does someone use arduino uno as i2c slave with arduino wire.h ?
i have two arduino uno with sda and scl connected.
Master board with arduino scanner code ( https://playground.arduino.cc/Main/I2cScanner/)
Slave board with something like https://www.electronicwings.com/arduino/arduino-i2c

no "i2c devices found".
i2c scanner works great with AD5247.

Simulide rev 1523.

It has been tested, and some errors reported and solved:
https://simulide.forumotion.com/t1252-twi-slave-transmit-on-avr-seemd-not-to-work-r1436win10?highlight=slave