Hey there! I got a couple of questions and would appreciate any help 
1. Please advise if it's possible to migrate Trello cards to already existing Jira project? We need it because we are planning to use Trello along with Jira and migrate new Trello cards to Jira from time to time.
2. When we've tried to mirgate Trello cards to a new Jira project (not what we need but still) not all users were added to Jira. They received no invitation and we got no error. Could anyone advise on this issue?