Hello everybody. Thanks for your feedback
Some portion of cache was not accessible to our app since Android 11. The good news is we have discovered a new method for quick cache removal and it is being implemented now, anticipating an update in matter of weeks. The downside of this method is we cannot know in advance what is the size of cache to be removed, however all tests indicate it is actually more effective than previous functionality on Android 10 and below. After the cleaning we can read the result and report the value.
Farid