Hi again.
Please find attached in secure note a link to the video that demonstrates the problem. I have tried solving the issue without luck. But now (as shown in the video) you will see that the content on the lower part (logo section) of the canvas, appears top right, if screen is not big enough. I would, however, expect it to stay below the menu content and appear upon scroll.
Also, I discovered other symptoms that may or may not be related:
1
Working with the header in Cornerstone appears occasionally to be surprisingly slow.
2
Once in a while this error message appears:
The preview could not load due to the iframe response being incomplete. This is most often related to a plugin conflict, or customisations introducing a php error.
The message typically disappears upon page refresh.
3
In Safari (iPhone), when shifting from vertical to horizontal view and back, the web page format locks meaning it doesn’t go back to vertical when turning the screen / iPhone back to vertical (please refer to the last section of the video).
Look forward to hearing from you. Thanks a lot.