Invincible GL Rey

Product: Star Wars: Galaxy of Heroes
Platform:Android Phone
What type of device are you experiencing the issue with? Smartphone
OS Version 10
Ally Code: (Find it here: http://bit.ly/AllyCode )
What type of issue do you have? Gameplay
How often does the bug occur? Rarely (0% - 9%)
Summarize your bug When GL Rey enters her ultimate stance, she doesn't leave it and therefore the squad remains invincible
Steps: How can we find the bug ourselves? I don't know
Connection Type Wifi
Please select your region Europe
Country Germany

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This is the most game breaking bug I have ever encountered.

It happened already 4 times. 3 times during a GAC battle which leads to an automatic loss.

When fighting GL Rey with my GL Kylo, she charges normally her ultimate ability. After she reaches 100% she enters the stance where the whole squad receive damage reduced to 1. Normally she should activate her ultimate after she gets 100% TM. But in my case, she jumps with her double crossed lightsaber at my squad, doing 0 damage and she stays the whole fight in this stance and therefore the enemy's squad remains practically invincible. 

And I'm not the only one experiencing this bug.