Not getting sharing toolbar in Skype for Business to hide on VDI system?

ufeffWhile doing desktop shaig using Skype for Business on Citrix VDI system, the blue pin has no effect.When I put the mouse over the pin Icon, I get the tooltip as Pied but it is completely un-responsive to anything.

On non-VDI system it works as normal. Please suggest if it is known issue with VDI or if any fix available.

-DJ