I Am able to make a new emblem but when I try to upload it as the new emblem it doesn't. I have tried signing out and back in but the problem doesn't go away.
IT is probably a problem on Beachhead servers or a new bug in the app. There are so many problems that is hard to keep track. You can try to restart your phone, if it helps or just wait for updates.
My Lt Commander had created a new clan emblem and experienced what you are. He had saved it ,of course, and continued to try and upload over a couple of days- we could see it on our "phone aps",just not on the Ipads or tablets. 3 days later it showed up. Like matuzz indicated, server issues come and go quite often ,so, please be persistent, you will get it! Good luck