Rocket Chat App User ... RC Running But not On Screen

Description

Part of a game support team which uses RC for communination

Server Setup Information

Not a server issue

Any additional Information

Installed Rocket Chat app yesterday, ran fine throughout the day. Upon closing and reopening I see a flash of a program windows and then it vanishes. Task manager shows 4 instances of the app running yet none are on screen.

Windows 7
No icon on Taskbar

EDIT: It is noted that when trying to install it failed 1at time, went OK on2nd. Uninstalling and reinstalling, solved the problem nut again, it takes 2 install attempts. Mark as closed.