When the list of recipients doesn't fit into the window and you use the arrow keys to go through the addresses, the cursor vanishes at the end because the list doesn't scroll. Happens both upwards and downwards.
Changes related to this bug have been committed. Please check latest Git and update the bug accordingly. You can also get the patch from: http://git.claws-mail.org/ ++ ChangeLog 2015-04-22 18:33:02.648238155 +0200 http://git.claws-mail.org/?p=claws.git;a=commitdiff;h=05df74e8e429736bebf5a696a9aa886f0b2e5af6 Merge: 4843be8 9cf5b73 Author: Colin Leroy <colin@colino.net> Date: Wed Apr 22 18:33:02 2015 +0200 Merge branch 'master' of file:///home/git/claws http://git.claws-mail.org/?p=claws.git;a=commitdiff;h=9cf5b73b4726a9e13deee191c1bd6dc75486a169 Author: Andrej Kacian <ticho@claws-mail.org> Date: Wed Apr 22 18:31:46 2015 +0200 Compose window: Fix bug #3421 - Recipients list doesn't scroll when moving with arrow keys.
Good catch, thanks. Fixed in git.