Continuing the discussion from Make Middle panel Heading &Filter icons Un-Scrollable:
I didn't even know this feature existed but I just tried it in IE, and I thought I'd let you know that it does not display correctly:
In Chrome it displays as per the OP above.
Thanks - I've reproduced this as well on IE 11. Works on Edge, Chrome, etc. We will take a look at IE. IE always seems to play by it's own set of rules...