diff --git a/src/adapters/tgk_store_fs/tgk_store_fs.c b/src/adapters/tgk_store_fs/tgk_store_fs.c
index 09543b0..fbfc254 100644
--- a/src/adapters/tgk_store_fs/tgk_store_fs.c
+++ b/src/adapters/tgk_store_fs/tgk_store_fs.c
@@ -253,7 +253,7 @@ bool amduat_tgk_store_fs_init(amduat_tgk_store_fs_t *fs,
 
     err = amduat_asl_store_get(asl_store, refs[i], &artifact);
     if (err != AMDUAT_ASL_STORE_OK) {
-      goto cleanup;
+      continue;
     }
 
     for (j = 0; j < artifacts_len; ++j) {
diff --git a/src/adapters/tgk_store_mem/tgk_store_mem.c b/src/adapters/tgk_store_mem/tgk_store_mem.c
index d07125c..3753396 100644
--- a/src/adapters/tgk_store_mem/tgk_store_mem.c
+++ b/src/adapters/tgk_store_mem/tgk_store_mem.c
@@ -111,9 +111,12 @@ static bool amduat_tgk_store_mem_type_filter_match(
     amduat_tgk_edge_type_id_t type_id) {
   size_t i;
 
-  if (filter.types_len == 0 || filter.types == NULL) {
+  if (filter.types_len == 0) {
     return true;
   }
+  if (filter.types == NULL) {
+    return false;
+  }
   for (i = 0; i < filter.types_len; ++i) {
     if (filter.types[i] == type_id) {
       return true;
diff --git a/src/tgk_stack/enc_edge/tgk1_edge.c b/src/tgk_stack/enc_edge/tgk1_edge.c
deleted file mode 100644
index e69de29..0000000