TechnicalStudies button on toolbar only working one way

[User (Legacy)]

Hello

I have a strange behavior in my chartFX 6.3 for WinForms.

If I draw my chart with extra price studies and I press the 

'TechnicalStudies' button on the toolbar the second time to hide the 

TechnicalStudies bar nothing will happend.  I can only use the button to 

turn the bar on but nothing will happend if I press it again.  Strangely if 

I press the Zoom button the bar will disaper  and then i can press the 

TechnicalStudies button again to show the Bar. I am not reciving any error 

and this button works fine if I have no extra price studies.

What could be the problem ?

Best regards.

Kristj

[Software FX]

Dear Kristj
chart.bmp