I've removed the tabrow as all objects are on one sheet now and this corruption (a dividing line appears through the standard icons) occurs when you select between menu items/objects (a refresh I guess…).
The problem occurs with the tab-row hidden or showing; switching between tabs (using the tabs or buttons if tab-row is hidden) resolves the issue. Again it looks to be 'refresh' related. Is there a way of forcing refresh on open or again maybe hiding the icon bar? Note the 'select report' duplication is part of the corruption…
I've used IE, Mozilla and Safari, but it occurs in all.
If this is a bug, can I switch off the standard icons row too?
An old issue I know, but I've recently found this issue occurring in some of my documents (QV10 SR4) and I haven't found a more recent post.
The icon bar 'slides down' the page after the user makes selections, and then begins to repeatingly duplicate itself on the row below the last row after each subsequent selection. Each row is an active icon (ie. they can be clicked), however where the icons should exist is blank but still clickable. If there is a dark background header on the sheet, it can give the appearance that the icons have just gone missing. Tab navigation didn't fix it for me, but refreshing the web page does temporarily.
However, I have found that unchecking the option 'Hide Unavailable Menu Options' in Doc Properties > General seems to have resolved the problem permanently.