After I updated our RocketChat instance from 6.1.4 to 6.2.0 one user reports that he cannot access the Server anymore, neither by browser (Chrome, Firefox) our Electron-Client.
After he logs in the Client crashes with the message: Application Error The application GUI just crashed.
We observed the same problem here with a handful of users. A collegue debugged it in so far as we found out that some banners were producing errors (those bars at the top of the client telling you about updates etc.). So we went into the user’s database entry in MongoDB and below services emptied the banners array key. The users could use the chat again, however this entry gets rewritten after some time and today I had to do the same thing again.