Chat deleted

Product: Star Wars: Galaxy of Heroes
Platform:Android Tablet
What type of device are you experiencing the issue with? Vizmo tablet
OS Version Android 6.0 marshmallow
Ally Code: (Find it here: http://bit.ly/AllyCode ) 795181387
What type of issue do you have? Other
How often does the bug occur? Occasionally (10% - 49%)
Summarize your bug All chat from some chat rooms has been deleted. I wrote pages of instructions for my guild, all gone. Deleted. Reports this is happening in other guilds too.
Steps: How can we find the bug ourselves? Check 2 guilds, Aussie made and Terra australis. Chat rooms 3d printing, and help chat room. All text deleted.
Connection Type Wifi
Please select your region Australia
Country Australia

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U changed the chat format, we embraced it, but its broken.