When working on a whiteboard, I regularly had to access the upper right menu with the styles and zoomin in/out functions. Suddenly (and repetetively), the menu with the account, alert and help buttons placed themselves on top of it, instead of over it. I.e., on the y-axis, they were in the same spot. Making the whiteboard menu inaccessible and with that, the entire whiteboard basically unusable. Reloading didn't help. Closing the browser did once, but the bug reappeared right after.
Not sure - it just kept happening mid-work, but I always only noticed after it happened.
Hey hdewendt, while this isn't a definitive fix, you can make the top toolbar visible by scrolling down and up again. We have noted this difficulty down though and will fix it when we rework Whiteboards in the future.