diff --git a/Packages/MIES/MIES_AnalysisFunctions_Dashboard.ipf b/Packages/MIES/MIES_AnalysisFunctions_Dashboard.ipf
index 846dbceca0..4b45e67a9f 100644
--- a/Packages/MIES/MIES_AnalysisFunctions_Dashboard.ipf
+++ b/Packages/MIES/MIES_AnalysisFunctions_Dashboard.ipf
@@ -349,7 +349,7 @@ static Function AD_FillWaves(win, list, info)
 						lastValid  = DimSize(spikeDetection, ROWS) - 1
 						ASSERT(Sum(spikeDetection, firstValid, lastValid) == 1, "Unexpected spike/non-spike duo")
 						Duplicate/FREE/R=[firstValid, lastValid] sweeps, passingSweeps
-						Duplicate/FREE/R=[0, firstValid - 1] sweeps, failingSweeps
+						WAVE/Z failingSweeps = GetSetDifference(sweeps, passingSweeps)
 					else
 						Duplicate/FREE sweeps, failingSweeps
 						WAVE/Z passingSweeps
diff --git a/Packages/tests/HardwareAnalysisFunctions/UTF_PatchSeqRheobase.ipf b/Packages/tests/HardwareAnalysisFunctions/UTF_PatchSeqRheobase.ipf
index 9518cf868f..7825be833d 100644
--- a/Packages/tests/HardwareAnalysisFunctions/UTF_PatchSeqRheobase.ipf
+++ b/Packages/tests/HardwareAnalysisFunctions/UTF_PatchSeqRheobase.ipf
@@ -422,7 +422,7 @@ static Function PS_RB4_REENTRY([str])
 
 	variable sweepNo, setPassed, i, numEntries, onsetDelay
 	variable initialDAScale, stepsize
-	string key
+	string key, browser
 
 	WAVE numericalValues = GetLBNumericalValues(str)
 
@@ -473,6 +473,19 @@ static Function PS_RB4_REENTRY([str])
 
 	CommonAnalysisFunctionChecks(str, sweepNo, {setPassed})
 	CheckPSQChunkTimes(str, {20, 520, 1023, 1523})
+
+	// check passing/failing sweeps
+	browser = DB_FindDataBrowser(str)
+	CHECK_PROPER_STR(browser)
+
+	DFREF dfr = BSP_GetFolder(browser, MIES_BSP_PANEL_FOLDER)
+
+	WAVE/T listWave = GetAnaFuncDashboardListWave(dfr)
+	CHECK_EQUAL_VAR(GetNumberFromWaveNote(listWave, NOTE_INDEX), 1)
+
+	WAVE/T infoWave = GetAnaFuncDashboardInfoWave(dfr)
+	CHECK_EQUAL_STR(infoWave[0][%$"Passing Sweeps"], "0;1;")
+	CHECK_EQUAL_STR(infoWave[0][%$"Failing Sweeps"], "")
 End
 
 static Function PS_RB5_preAcq(string device)