'How to find reason of fragment memory leak? (profiler)

I found a fragment memory leaks with profiler. PagerFragment has viewpager2 with FragmentStateAdapter

I checked A fragment called onDestroy but memory leak accurs. How to find which causes memory leak by profiler?

Also I used LeakCanary, but it could not find fragment memory leak. (but profiler did) Can you guess why LeakCanary cannot find memory leak?

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