diff --git a/wled00/FX_fcn.cpp b/wled00/FX_fcn.cpp
index bf51ac46d..937ab1d00 100644
--- a/wled00/FX_fcn.cpp
+++ b/wled00/FX_fcn.cpp
@@ -465,6 +465,7 @@ void Segment::setGeometry(uint16_t i1, uint16_t i2, uint8_t grp, uint8_t spc, ui
 
   m12 = constrain(m12, 0, 7);
   if (stop && (spc > 0 || m12 != map1D2D)) fill(BLACK);
+  if (m12 != map1D2D) map1D2D = m12;
 /*
   if (boundsUnchanged
       && (!grp || (grouping == grp && spacing == spc))