Index: trunk/src_plugins/exto_std/bus.c
===================================================================
--- trunk/src_plugins/exto_std/bus.c	(revision 32493)
+++ trunk/src_plugins/exto_std/bus.c	(revision 32494)
@@ -261,6 +261,7 @@
 static pcb_extobj_new_t pcb_bus_float_new(pcb_subc_t *subc, pcb_any_obj_t *floater)
 {
 	rnd_trace("bus: float new %ld %ld\n", subc->ID, floater->ID);
+	bus_clear(subc); /* a new floater may affect existing rendered line lengths at junctions, it's better to recalc the whole bus */
 	return PCB_EXTONEW_FLOATER;
 }