Execution page for test case looks 80% empty, due to a white overlay

[Iris Andersen]

I am using Jira cloud with Zephyr squad that was updated to 9.0.0. Essential and after that there has been various issues.

One that came after a few days is that the execution info of the test case including the execution steps look to be gone. However, I noticed that I have a scrollbar at the right that allows me to see everything, in the 20% part of the window, the rest of the window is white. I click on the bell symbol in the upper right corner and the window showing did also hide behind the this 80% white area. 

Anyone, seen something similar and know how to fix it?

I am not able to change the size of the upper part of the window, it is just blocked by this white area. i can zoom in and out, but I do not manage to see more, the white area just take up more or less of the screen. It scales with zoom.

I tried Edge and Chrome.