No Darth Revan shards

Product: Star Wars: Galaxy of Heroes
Platform:Android
What type of device are you experiencing the issue with? OnePlus 12r
OS Version no
Ally Code: 223-499-455
What type of issue do you have? Missing Rewards
How often does the bug occur? Rarely (0% - 9%)
Summarize your bug Even having completed all the Darth Revan stages, I only have 275/330 fragments.
Steps: How can we find the bug ourselves? After I did level 6, my game crashed and I didn't receive any shards.
Connection Type Wifi
Please select your region Europe
Country Netherlands

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