False Error from Scoreboard – Empty function

Hi,
  I am using a scoreboard array for a testbench, and am getting what appears to be false errors from scoreboard (i.e, Scb error is shown even though the expected/actual data matches correctly).  The only clue that I have is from the error message, which shows “Empty: false” (False is returned from Empty function in ScoreBoardGenericPkg).  And oddly, the scoreboard Error Count goes back to 0 on subsequent data checks.

   Any ideas on how to debug the root cause of this false error?  Even though the scoreboard error count goes back to 0, my testbench has a global error counter that tracks/counts errors from multiple processes during the sim.  So this false error from scoreboard results in false failures of testcases.  (I could kludge a work-around, but would prefer an actual fix.)

# %%ERROR  Scoreboard (1)    Error Count: 1   Check Count: 53   Empty: false
  . . .
# %%GOOD  Scoreboard (1)    Error Count: 0   Check Count: 54   Empty: true


Additional log below, which shows my own error counters = 1 on data item #53, and error count going back to 0 on the next (#54) checked data item (PREV-ErrCNT_pre/post = 0): 

# Scb Expected: 4 byte Hdr + 4 byte Pyld = 0x478099C200010002, At Time 2296245 ns
# Scb Actual:   4 byte Hdr + 4 byte Pyld = 0x478099C200010002, At Time 2296245 ns
#    Time: 2296245 ns  Iteration: 2  Instance: /tbtopingress/U_Ingress_Scoreboard
# %%ERROR  Scoreboard (1)    Error Count: 1   Check Count: 53   Empty: false
# 2296245 ns:  *INFO* (U_Ingress_Scoreboard)  PREV-ErrCNT_pre = 1 at index = 1.
# %%ERROR  Scoreboard (1)    Error Count: 1   Check Count: 53   Empty: false
# 2296245 ns:  *INFO* (U_Ingress_Scoreboard)  DeltaErrorCnt = 1 at index = 1.
# %%ERROR  Scoreboard (1)    Error Count: 1   Check Count: 53   Empty: false
# 2296245 ns:  *INFO* (U_Ingress_Scoreboard)  PREV-ErrCNT_post = 1 at index = 1.

#   Scb Expected: 4 byte Hdr + 4 byte Pyld = 0x478097C00001092A, At Time 2296855 ns
#   Scb Actual:   4 byte Hdr + 4 byte Pyld = 0x478097C00001092A, At Time 2296855 ns
#    Time: 2296855 ns  Iteration: 2  Instance: /tbtopingress/U_Ingress_Scoreboard
# %%GOOD  Scoreboard (1)    Error Count: 0   Check Count: 54   Empty: true
# 2296855 ns:  *INFO* (U_Ingress_Scoreboard)  PREV-ErrCNT_pre = 0 at index = 1.
# %%GOOD  Scoreboard (1)    Error Count: 0   Check Count: 54   Empty: true
# 2296855 ns:  *ERROR* (U_Ingress_Scoreboard)  Negative DeltaErrorCnt = -1 at index = 1.
# %%GOOD  Scoreboard (1)    Error Count: 0   Check Count: 54   Empty: true
# 2296855 ns:  *INFO* (U_Ingress_Scoreboard)  PREV-ErrCNT_post = 0 at index = 1.