With the apt packages of mysql 8.0.20-0ubuntu0.20.04.1 the current snap version of mysql-shell segfaults on add_instance().
A rebuilt snap using the latest of the 8.0 branches for mysql-shell and mysql-server works.
This is a msyql-shell bug not a mysql-innodb-cluster bug.
With the apt packages of mysql 8.0.20- 0ubuntu0. 20.04.1 the current snap version of mysql-shell segfaults on add_instance().
A rebuilt snap using the latest of the 8.0 branches for mysql-shell and mysql-server works.
This is a msyql-shell bug not a mysql-innodb- cluster bug.