Had same problem, couldn't save and no icons in ui. Solution:
- Install packages mentioned in description - Install 'oxygen-icon-theme' package see (https://bugs.launchpad.net/ubuntu/+source/umbrello/+bug/1598401?comments=all) -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to umbrello in Ubuntu. https://bugs.launchpad.net/bugs/1585611 Title: saving file in umbrello not working on Ubuntu 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/umbrello/+bug/1585611/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs