Index: read.c
===================================================================
--- read.c	(revision 31172)
+++ read.c	(revision 31173)
@@ -919,6 +919,7 @@
 	}
 
 	pcb_gfx_set_pixmap_dup(gfx, pxm, 0);
+	gfx->pxm_id = refid;
 
 	pcb_gfx_update(gfx);
 	if (ly != NULL)
Index: write.c
===================================================================
--- write.c	(revision 31172)
+++ write.c	(revision 31173)
@@ -533,7 +533,8 @@
 	if (existing == gfx->pxm_neutral)
 		return gfx->pxm_id;
 
-	gfx->pxm_id = pcb_create_ID_get();
+	if (existing != NULL)
+		gfx->pxm_id = pcb_create_ID_get(); /* need to find a new ID because the one in gfx is already in use for a different pixmap */
 	htip_set(&id2pxm, gfx->pxm_id, gfx->pxm_neutral);
 	htpi_set(&pxm2id, gfx->pxm_neutral, gfx->pxm_id);
 	return gfx->pxm_id;