yTitle Does Not Retain The String

[kashoory]

I am using MultiAxisSpline from HTML5 charts to create a report by Jasper Studio Professional . I have a problem with title of one of the y-axes. I set the title of the left-side yAxis by assigning the expression 

new ArrayList(Arrays.asList("My Title"))[/code]

to the property yAxis.title.text using the dialog box "HTML5 Charts properties". When I load the report by Jasperserver AWS everything is okay, however after changing some input controls and pressing apply button, the title returns back to the default value "Y-Values"!

Is there anything wrong with the way I set the title?

Any help would be appreciated.

 

Regards,

Keivan