we have found a bug that causes issues when training troops so we'd like to ask you NOT to train troops via the mobile APPs until we update the servers with the hotfix. If you attempt to do that your resources will be gone but no troops will be added to the training queue. We are sorry for the inconvenience caused and are working with high priority towards a solution which will be updated live as soon as possible.
We will inform you all as soon as there are any updates.
Your Travian Kingdoms Team