Editing the name of a contact creates a new contact without deleting the old one

[pauleonix]

I end up with two contacts, one with the old name, one with the new one, both with the same phone number.

I'm on Version 6.21.1.

[tibbi]

Hi, what contact source are you saving the contact to? I mean the last field at the contact details screen. Does it say your email, Phone, SIM or something like that?

[pauleonix]

The original one was on a SIM, the one with the changed name goes to a mail address.

[tibbi]

Does creating a new contact on the SIM work well? Try restarting the device too to see if the contact survives it.

[pauleonix]

1. I created a new "Test" contact on the SIM which seemed to work without a problem.
2. Then I renamed it which did not spawn a new contact this time.
3. Then I restarted the device. Both versions of the contact that started this issue survived the reboot. But the "Test" contact is back to its original name.
4. I restarted a second time and now it stopped showing any SIM contacts, i.e. both the "Test" contact and the "old name" version of the original contact are not visible or gone?

[Machion]

Hi, I have same/similar problem with version 6.22.1, Android11/Lineage18.

Edited the name of a contact which is on device (which has phone number(mobil-tag)+birthday+signal connection). Suddenly there is a new contact with the new name on device (phone number(mobil-tag)+birthday) and the old one (with old name) with phone number(other-tag) and only signal connection in it.