I'm not sure if I've found a bug. I'm using a MultiStyleLabel. It extends LabelBase. LabelBase supports an ellipsis for text that extends beyond a boundary.
I was using a standard Lablel object (which also extends LabelBase). It was showing an ellipsis correctly for longer text. I then switched to using a MultiStyleLabel and it no longer shows an ellipsis for the same text.
Can someone verify that this is a Roku bug?
I am also experiencing this issue leading to a large amount of workaround to try and make this useable.
@Chris-DP Please see the answer on StackOverflow. This has been resolved.