Call block list full -Delete some items

[Solangeburgas]

I try to block a number from my call log.
Error - Call block list full - Delete some items displayed
In my block list i have under 50 number .
Settings - phone - block list - I can add this number to the list either complete manually or from log.
Same error on both lists, messgae and calls. No matter if i try to blocck call or sms or both, same error
I wipe cache restarting phone with no effect.
I delete 5 number from block list, but still not working.
I try to add another number from call log, same error.

 

[Solangeburgas]

And same error after delete all data and reinstall. I think is a bug somewhere, maybe because i import this list from my iPhone with Smart Switch Adaptor when i first use S7 Edge.

 

[Solangeburgas]

Now i delete all blocked contacts and add again manually. The error is gone now. For sure it must be a bug somehow, happening when this block list is added by importing from iPhone.