diff --git a/Trigger/TrigValidation/TrigAnalysisTest/share/ref_RDOtoRDOTrig_v1Dev_build.ref b/Trigger/TrigValidation/TrigAnalysisTest/share/ref_RDOtoRDOTrig_v1Dev_build.ref
index 3b86efd74042dacdef5bd7d6f3fb8cee0300d627..e189ec3e190da543245550a9306890ee0bc01de5 100644
--- a/Trigger/TrigValidation/TrigAnalysisTest/share/ref_RDOtoRDOTrig_v1Dev_build.ref
+++ b/Trigger/TrigValidation/TrigAnalysisTest/share/ref_RDOtoRDOTrig_v1Dev_build.ref
@@ -5832,12 +5832,6 @@ HLT_tau80_mediumRNN_tracktwo_tau60_mediumRNN_tracktwo_03dRAB_L1TAU60_2TAU40:
     2: 7
 HLT_timeburner_L1All:
   eventCount: 0
-HLT_unconvtrk0_fslrt_L1All:
-  eventCount: 20
-  stepCounts:
-    0: 20
-  stepFeatures:
-    0: 20
 HLT_unconvtrk0_fslrt_L1XE50:
   eventCount: 9
   stepCounts:
diff --git a/Trigger/TrigValidation/TriggerTest/share/ref_data_v1Dev_build.ref b/Trigger/TrigValidation/TriggerTest/share/ref_data_v1Dev_build.ref
index 2b79e7f630ba892e51eb0c1a884514b184ec6d3a..95cce6444b2e5af63d418384843aa1fd26a54f60 100644
--- a/Trigger/TrigValidation/TriggerTest/share/ref_data_v1Dev_build.ref
+++ b/Trigger/TrigValidation/TriggerTest/share/ref_data_v1Dev_build.ref
@@ -3749,12 +3749,6 @@ HLT_tau80_mediumRNN_tracktwo_tau60_mediumRNN_tracktwo_03dRAB_L1TAU60_2TAU40:
   eventCount: 0
 HLT_timeburner_L1All:
   eventCount: 0
-HLT_unconvtrk0_fslrt_L1All:
-  eventCount: 19
-  stepCounts:
-    0: 19
-  stepFeatures:
-    0: 19
 HLT_unconvtrk0_fslrt_L1XE50:
   eventCount: 19
   stepCounts:
diff --git a/Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Menu/LS2_v1.py b/Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Menu/LS2_v1.py
index 2288670d2b10ba6a79c86865e8832d501e92259f..16353e9e367c3781a2b6373f1022675f31c551f6 100644
--- a/Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Menu/LS2_v1.py
+++ b/Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Menu/LS2_v1.py
@@ -812,6 +812,6 @@ def setupMenu():
         ChainProp(name='HLT_xe80_tcpufit_unconvtrk120_isohpttrack_loose_iaggrloose_L1XE50', groups=SingleMETGroup, l1SeedThresholds=['XE50','FSNOSEED']),
 
 
-        ChainProp(name='HLT_unconvtrk0_fslrt_L1All', groups=SingleMETGroup, l1SeedThresholds=['FSNOSEED']),
+        # ChainProp(name='HLT_unconvtrk0_fslrt_L1All', groups=SingleMETGroup, l1SeedThresholds=['FSNOSEED']), # ATR-23347, transient menu compilation error...
         ChainProp(name='HLT_unconvtrk0_fslrt_L1XE50', groups=SingleMETGroup, l1SeedThresholds=['XE50']),
     ]