Wat Tambor battle - freeze then drop out of game

Product: Star Wars: Galaxy of Heroes
Platform:Android Phone
What type of device are you experiencing the issue with? Samsung A20
OS Version Latest
Ally Code: (Find it here: http://bit.ly/AllyCode ) 974873625
What type of issue do you have? Other
How often does the bug occur? Rarely (0% - 9%)
Summarize your bug Playing for Wat Tambor shards. In to the second phase, wiped one enemy, started on next (eeth koth). The game jittered and hung for a second, then dropped out. I logged back in and restarted game, but obviously the game recorded that i'd already played the scenatio. P.s. it also robbed me of 1 x shard which is kinda frustrating too.
Steps: How can we find the bug ourselves? You can run the game log, but invariably you will do you'll say there was no errors, so it must be my phone or something. It isnt my phone. You'll see from the game log that the scenario ended significantly quickly for what would be a 4 round scenario, and that my squad is capable of easily getting to the last phase (even on auto), so that the scenario finished remarkably early for a 4 phase attack showing i either lost really early (and my squad is too good for a phase 2 loss) or that the game obviously crashed as i said above. I guess i could've forfeited which would give the same report, but of course i didnt. Why would i?
Connection Type Wifi
Please select your region Australia
Country New Zealand

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There isnt anything to attach. By the game crashing theres no evidence i can attach.