01.06.2017, 06:04
This is an issue caused by Apps server upgrade. You need to install this fix through Utilities -> Install updates, then reinstall Mosaic and it will work:
https://dl.openrb.com/lmup/2017.05.29-apps-install.lmup
You can also install RC3 or later where this bug is fixed.
https://dl.openrb.com/lmup/2017.05.29-apps-install.lmup
You can also install RC3 or later where this bug is fixed.