Contacts duplication in writing new message in messaging app

[Alam1998]

When I want to write a message to my contacts in messaging app ,I press space to see the contacts and they display duplicated.

I recently formatted my device and backed up my contacts, then restored them. Some contacts were missing so I deleted all the contacts and restored once again.  My contacts all aren't in english, I made the system language english especially for the screenshot. 

When I browse my contacts I don't see them duplicated as they're displayed in writing new message in messaging app.

any suggestion for the problem would be appreciated, thanks.

[_alexdon_]

@Alam1998 Do you have more filters set up? Can you make sure you have a backup of your contacts and try settings - apps, show system and clear data for contacts storage? This will erase all your locally stored contacts.

[Alam1998]

The contacts are backed up by vcf. but when I cleared the cache on contacts storage that deleted all the contacts.
But now when i restore the vcf. file it says contacts imported but no contacts show in contacts list. I really need that to be solved as fast as possible.

[_alexdon_]

You might have to check the filter for local contacts.

[Alam1998]

My local contacts filter wasn't checked, I checked it and the contacts appeared. But when writing new message they still appear duplicated as shown in the screenshot above... Some contacts are duplicated 2-4 times. Is that an issue with the vcf. card?

[_alexdon_]

In this case, can you try to clear data for messaging app the same way you did for contacts storage? Also, can you check if the same occurs in safe mode?

[Alam1998]

In safe mode some contacts appear duplicated not all. I tried clearing the cache for the messaging app and it doesn't delete the messages. Still, they appear duplicated and when I want to text a group it's kinda inconvenient....

[_alexdon_]

It's either the filter or the contacts acting up, if the backup is like this I believe it will restore it the same.

[Alam1998]

There's no filtering in messaging app, and in contacts I made sure that only the phone contacts is filtered...
Is there anyway to edit the vcf. file so that I can clear the cache of contacts storage and backup the edited vcf. again?

[_alexdon_]

Maybe this helps:

/t5/Xperia-S-SL-acro-S/How-can-I-extract-contacts-from-dbk-file-on-my-computer/m-p/235921#M18676