Doubling chat messages

Delnai

I sometimes receive notifications for chat messages received while in game more than once. Specifically, after a message is posted in my coalition's chat, a minute or two later I will receive another notification of the message, and it will appear twice in the chat log. This happens both with messages I receive from other people and with messages I post, but doesn't seem to happen with every message. Restarting the app removes the redundant messages from the log. Is anyone else having this problem?