There are two enum entries with the same value in enum MemoryType in allocation.hpp.

mtTracing and mtDontTrack are both defined as 0x0F00. This probably makes memory allocated by JFR invisible/untrackable.

enum MemoryType {
...
  mtClassShared = 0x0D00, // class data sharing
  mtTest = 0x0E00, // Test type for verifying NMT
  mtTracing = 0x0F00, // memory used for Tracing
  mt_number_of_types = 0x000F, // number of memory types (mtDontTrack
                                 // is not included as validate type)
  mtDontTrack = 0x0F00, // memory we do not or cannot track
  mt_masks = 0x7F00,
...
}