If you cannot access your Profile and Settings due to the bottom left button vanishing, please try zooming in or out to see if it was cut off.
Zooming in too close will cause the button to leave the field of view.
Zooming too far out will cause large white UI spaces, and the button to be obscured by these spaces.
Optimal zoom range may vary from screen to screen, but currently recommend 80%-100% zoom; if this range does not fix the issue, please try experimenting with lower or higher ranges before reaching out to helpdesk.
We are continuing to work on a fix for this incident in the meantime, and thank you for your patience.