Missing executrix shards

Product: Star Wars: Galaxy of Heroes
Platform:iOS
What type of device are you experiencing the issue with? iPhone 13
OS Version 15.6.1
Ally Code: (Find it here: http://bit.ly/AllyCode ) 616-732-122
What type of issue do you have? Missing Rewards
How often does the bug occur? Rarely (0% - 9%)
Summarize your bug I completed the fourth stage of the executrix fleet challenge that rewards 65 shards. Upon completing, the app said it had to be reloaded due to connection and when I reconnected, the challenge was completed, but the rewards were not awarded. This bug occurred years ago, but I have redownloaded the game and am playing it again. I am unable to progress until this bug has been resolved, however.
Steps: How can we find the bug ourselves?
Connection Type Wifi
Please select your region Asia
Country Singapore

‌

I reported this in game, but I was told that I had already received all the rewards.