diff --git a/wled00/FX_fcn.cpp b/wled00/FX_fcn.cpp
index a735bdc4..d2602218 100644
--- a/wled00/FX_fcn.cpp
+++ b/wled00/FX_fcn.cpp
@@ -487,7 +487,7 @@ void Segment::setCurrentPalette() {
     // there are about 255 blend passes of 48 "blends" to completely blend two palettes (in _dur time)
     // minimum blend time is 100ms maximum is 65535ms
     unsigned long timeMS = millis() - _t->_start;
-    uint16_t noOfBlends = (255U * timeMS / _t->_dur) - _t->_prevPaletteBlends;
+    uint16_t noOfBlends = min(64UL, (255U * timeMS / _t->_dur) - _t->_prevPaletteBlends);  // WLEDMM limit to 64 blends at once, prevent rollover
     for (unsigned i = 0; i < noOfBlends; i++, _t->_prevPaletteBlends++) nblendPaletteTowardPalette(_t->_palT, _currentPalette, 48);
     _currentPalette = _t->_palT; // copy transitioning/temporary palette
   }