Index: bxl_gram.c
===================================================================
--- bxl_gram.c	(revision 30622)
+++ bxl_gram.c	(revision 30623)
@@ -644,7 +644,7 @@
 break;
 case 30:
 #line 164 "../../src_plugins/io_bxl/bxl_gram.y"
-	{ pcb_bxl_padstack_begin(ctx, yyctx->stack.l_mark[0].un.s); /* $2 is taken over */ }
+	{ pcb_bxl_reset(ctx); pcb_bxl_padstack_begin(ctx, yyctx->stack.l_mark[0].un.s); /* $2 is taken over */ }
 break;
 case 31:
 #line 166 "../../src_plugins/io_bxl/bxl_gram.y"
Index: bxl_gram.y
===================================================================
--- bxl_gram.y	(revision 30622)
+++ bxl_gram.y	(revision 30623)
@@ -161,7 +161,7 @@
 /*** PadStack ***/
 
 pad_stack:
-	T_PADSTACK T_QSTR               { pcb_bxl_padstack_begin(ctx, $2); /* $2 is taken over */ }
+	T_PADSTACK T_QSTR               { pcb_bxl_reset(ctx); pcb_bxl_padstack_begin(ctx, $2); /* $2 is taken over */ }
 		pstk_attrs nl
 		T_SHAPES ':' T_INTEGER nl     { ctx->state.num_shapes = $8; }
 		pad_shapes
Index: read.c
===================================================================
--- read.c	(revision 30622)
+++ read.c	(revision 30623)
@@ -201,6 +201,9 @@
 	if (ctx->proto_id-1 != i)
 		pcb_message(PCB_MSG_WARNING, "bxl footprint error: failed to insert padstack '%s'\n", ctx->state.proto.name);
 	ctx->state.proto.name = NULL; /* do not free it as it is the hash key */
+
+	pcb_pstk_proto_free_fields(&ctx->state.proto);
+	ctx->state.proto.tr.used = 0;
 }
 
 void pcb_bxl_padstack_begin_shape(pcb_bxl_ctx_t *ctx, const char *name)