Last Russian letter in label showing as a square box
User noticed that in the button label, the last Russian letter zhe (Ж) is shown instead as a square box. The letter replaced by the square box is the 28th character in a 40 character localized label value. IE not allowing the full localized label value to show and is needed to truncate the label value.
Chrome truncates the label value at the same location, but it renders an ellipsis (three dots ...) to indicate the truncation.
Steps to Reproduce
Save as pyButtonLabel with some name like "testbutton".
Put some russian alphabets in button text.
Run the flow.
It (Ж) will be rendered as square.
The root cause of the issue was with the way long unicode character was getting rendered at runtime.
This issue was fixed in ML7. Customer moved to ML7 to get rid of the issue.