Why is multi touch not working?

I replaced the display on my Galaxy A20e with an "OEM" one. Everything works except multi touch (the ability to use more than one finger). I already tried updating the display firmware and reflashing the firmware, but it did not help. Please help, thank you!

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0