Mails combine: If i receive an answer of a previous mail the mail will not show at first.
If i receive an answer of a previous mail the mail will not show at first. The old mail is the first in this grouping. Also if i receive a CC mail and another person is answering to all receiver, the first mail that i see is the original where is was in CC and not the new answer.
. In addition the system will combine mails which haven't a relation together ( maybe except the same topic )
I'm using 1 exchange and 2 imap accounts. I have this problem with all accounts.

This is fixed in 0.6.4.
About combined message that do not belong together, please refer to this post: https://boxer.uservoice.com/admin/forums/256309-android-feedback/suggestions/6158960-conversation-contains-email-not-part-of-the-conver