diff --git a/MuonSpectrometer/MSVertexReconstruction/MSVertexTools/src/MSVertexTrackletTool.cxx b/MuonSpectrometer/MSVertexReconstruction/MSVertexTools/src/MSVertexTrackletTool.cxx
index 74ed69437a65de087ca3aa88b1e93ef431f57ae2..1815d409cf6d96f712bdd0a5dcf6cbbf001cc3ca 100644
--- a/MuonSpectrometer/MSVertexReconstruction/MSVertexTools/src/MSVertexTrackletTool.cxx
+++ b/MuonSpectrometer/MSVertexReconstruction/MSVertexTools/src/MSVertexTrackletTool.cxx
@@ -699,7 +699,7 @@ namespace Muon {
                     float mdt_y = std::hypot(prd->globalPosition().x(), prd->globalPosition().y());
                     float mdt_z = prd->globalPosition().z();
                     float yPi = -(mdt_z - zc) * sin_a + (mdt_y - yc) * cos_a - d;
-                    float signR = yPi >= 0 ? 1. : -1;
+                    float signR = yPi >= 0 ? -1. : 1;
                     float sigma2 = sq(Amg::error(prd->localCovariance(), Trk::locR));
                     float ri = signR * prd->localPosition()[Trk::locR];
                     ////
diff --git a/Tools/WorkflowTestRunner/python/References.py b/Tools/WorkflowTestRunner/python/References.py
index 41e8df2b84f5bcc3777b3bf89a4dd7dab6ef4356..79da16cb435d14ecac8e3097d6b6314a3780a513 100644
--- a/Tools/WorkflowTestRunner/python/References.py
+++ b/Tools/WorkflowTestRunner/python/References.py
@@ -24,10 +24,10 @@ references_map = {
     "d1759": "v15",
     "d1912": "v5",
     # Reco
-    "q442": "v50",
-    "q449": "v79",
-    "q452": "v10",
-    "q454": "v16",
+    "q442": "v51",
+    "q449": "v80",
+    "q452": "v11",
+    "q454": "v17",
     # Derivations
     "data_PHYS_Run2": "v23",
     "data_PHYSLITE_Run2": "v4",