Index: firmware/App/Services/TxParams.c
===================================================================
diff -u -r0149a6f7d737cedc2501948eb51c59a001d89196 -r0b6ae0a6975c4a8fdef0f8eba4eddefa04f278d4
--- firmware/App/Services/TxParams.c	(.../TxParams.c)	(revision 0149a6f7d737cedc2501948eb51c59a001d89196)
+++ firmware/App/Services/TxParams.c	(.../TxParams.c)	(revision 0b6ae0a6975c4a8fdef0f8eba4eddefa04f278d4)
@@ -761,8 +761,8 @@
             validWeights = FALSE;
         }
     }
-    // provided a UF volume instead of weights
-    else if ( ( uFVolumeL >= 0.0F ) && ( preWeight < NEARLY_ZERO ) && ( targetWeight < NEARLY_ZERO ) )
+    // provided a UF volume instead of weights (pre weight can be non-zero for logging)
+    else if ( ( uFVolumeL >= 0.0F ) && ( targetWeight < NEARLY_ZERO ) )
     {
         result = TRUE;
     }