The Kunena team has announce the arrival of Kunena 7.0.4 [K 7.0.4] in stable which is now available for download as a native Joomla extension for J! 5.4.x/6.0.x. This version addresses most of the issues that were discovered in K 6.2 / K 6.3 / K 6.4 and issues discovered during the last development stages of K 7.0
Hello Lintzy and all. Indeed this is an error in Kunene. I had to re-create a new user and assign the same ID. Be careful in changing the ID in the tables jos_core.
Then it is necessary to manually delete the user Jomsocial profile (if you use it) will not appear.
It is too complicated, I hope the developers find a solution for Kunene delete users and keep their messages without creating problems with rank.