mergDataGridScroller CheckForLongTouch error

[trevix]

When the data grid is empty, holding down the mouse on it trow an error in LC 8.1.0 and LC 7.1

Script "CheckForLongTouch" of button "merDataGridScroller Behavior" of card "mergDataGridScroll"
line 328 : error in object expression. bad target.

I have a

Code: Select all

dispatch "updateContentRect" to group "mergDataGridScroller" of card "MyCard" of stack "MyStack"

after setting the dgData of the data grid

Any Idea?
Thanks
Trevix