diff --git a/tools/chatgui/transport/chat_core.c b/tools/chatgui/transport/chat_core.c
index e47dad65..30176da7 100644
--- a/tools/chatgui/transport/chat_core.c
+++ b/tools/chatgui/transport/chat_core.c
@@ -283,10 +283,12 @@ void chat_core_update_my_name(const char* name) {
                         }
                         EVP_PKEY_free(pkey);
                     }
-                    topo_node_sqlite_member_put(g_cc.db, ch, myid, new_sig, join_ts, NULL, 0,
+                    int r1 = topo_node_sqlite_member_put(g_cc.db, ch, myid, new_sig, join_ts, NULL, 0,
                         g_cc.inst->my_keys.public_key, g_cc.inst->my_ed25519_pubkey, name, NULL);
-                    member_sync_put(g_cc.inst, ch, myid, g_cc.inst->my_keys.public_key,
-                                    g_cc.inst->my_ed25519_pubkey, new_sig, join_ts, NULL, 0, name, NULL, 0);
+                    if (r1 != 0) DEBUG_ERROR(DEBUG_CATEGORY_CONNECTIVITY, "%s: member_put(my_name) FAILED ch=%s rc=%d", CC_ID, ch, r1);
+                    int r2 = member_sync_put(g_cc.inst, ch, myid, g_cc.inst->my_keys.public_key,
+                                             g_cc.inst->my_ed25519_pubkey, new_sig, join_ts, NULL, 0, name, NULL, 0);
+                    if (r2 != 0) DEBUG_ERROR(DEBUG_CATEGORY_CONNECTIVITY, "%s: member_sync_put(my_name) FAILED ch=%s rc=%d", CC_ID, ch, r2);
                     uint8_t evt[65]; uint8_t cl = (uint8_t)strlen(ch);
                     evt[0] = cl; memcpy(evt + 1, ch, cl);
                     gui_bridge_post(GUI_EVT_MEMBERS_CHANGED, evt, 1 + cl);
@@ -1034,7 +1036,11 @@ void chat_core_ensure_channel_ready(const char* ch_id) {
         "  join_sig         BLOB,"
         "  join_ts          INTEGER DEFAULT 0,"
         "  update_sig       BLOB,"
-        "  update_ts        INTEGER DEFAULT 0"
+        "  update_ts        INTEGER DEFAULT 0,"
+        "  name             TEXT NOT NULL DEFAULT '',"
+        "  creator_sig      BLOB,"
+        "  comment          TEXT,"
+        "  joined_at        INTEGER DEFAULT (unixepoch())"
         ")", tbl_peers);
     db_exec(sql);
 
@@ -1065,9 +1071,7 @@ void chat_core_create_channel(struct chat_channel_create* req) {
     DEBUG_INFO(DEBUG_CATEGORY_CONNECTIVITY, "%s: create_channel BEGIN ch=%s name=%s",
                CC_ID, req->channel_id, req->name);
 
-    chat_core_ensure_channel_ready(req->channel_id);
-
-    /* записываем канал в БД */
+    /* записываем канал в БД ПЕРВЫМ — создаст полную схему peers_<ch_id> (11 колонок) */
     int rc = topo_node_sqlite_channel_put(g_cc.db,
         req->channel_id, req->name, req->is_dm, req->owner_node_id,
         req->x25519_pubkey, req->x25519_privkey,
@@ -1081,6 +1085,9 @@ void chat_core_create_channel(struct chat_channel_create* req) {
         DEBUG_INFO(DEBUG_CATEGORY_CONNECTIVITY, "%s: channel_put OK ch=%s name=%s owner=0x%016llx",
                    CC_ID, req->channel_id, req->name, (unsigned long long)req->owner_node_id);
 
+        /* после полной схемы — готовим таблицы и db_sync */
+        chat_core_ensure_channel_ready(req->channel_id);
+
         uint8_t ch_id_len = (uint8_t)strlen(req->channel_id);
         uint8_t data[65];
         data[0] = ch_id_len;
@@ -1113,9 +1120,13 @@ void chat_core_create_channel(struct chat_channel_create* req) {
             } else {
                 memset(join_sig, 0, 64);
             }
-            member_sync_put(g_cc.inst, req->channel_id, myid,
+            int mrc = member_sync_put(g_cc.inst, req->channel_id, myid,
                 g_cc.inst->my_keys.public_key, g_cc.inst->my_ed25519_pubkey,
                 join_sig, join_ts, NULL, 0, g_cc.inst->name, NULL, 0);
+            if (mrc != 0) {
+                DEBUG_ERROR(DEBUG_CATEGORY_CONNECTIVITY, "%s: member_sync_put(self) FAILED ch=%s rc=%d",
+                            CC_ID, req->channel_id, mrc);
+            }
         }
 
         /* notify GUI — members already in DB, channel will show with self as participant */
diff --git a/tools/chatgui/transport/chat_sync.c b/tools/chatgui/transport/chat_sync.c
index 77648220..075861e8 100644
--- a/tools/chatgui/transport/chat_sync.c
+++ b/tools/chatgui/transport/chat_sync.c
@@ -945,7 +945,8 @@ static void cs_handle_channel_info_resp(struct chat_sync* cs, uint64_t peer,
           lk = lk->next;
         }
       }
-      topo_node_sqlite_member_put(vdb, ch_id, peer, inviter_join_sig, inviter_join_ts, inviter_update_sig, inviter_update_ts, inv_x25519, inv_ed, inv_name, inviter_join_sig);
+      int rc = topo_node_sqlite_member_put(vdb, ch_id, peer, inviter_join_sig, inviter_join_ts, inviter_update_sig, inviter_update_ts, inv_x25519, inv_ed, inv_name, inviter_join_sig);
+      if (rc != 0) DEBUG_ERROR(DEBUG_CATEGORY_CONNECTIVITY, "%s: member_put(inviter) FAILED ch=%s peer=%016llx rc=%d", CS_ID, ch_id, (unsigned long long)peer, rc);
       topo_node_sqlite_node_update_verified(vdb, peer, inv_name, inv_x25519, inv_ed, inviter_join_ts);
     }
 
@@ -1047,7 +1048,8 @@ static void cs_handle_channel_join(struct chat_sync* cs, uint64_t peer,
     }
 
     sqlite3* db = cs->inst->topo_groups->topo_sqlite_db;
-    topo_node_sqlite_member_put(db, ch_id, node_id, join_sig, join_ts, NULL, 0, x25519, ed_pub, joiner_name, NULL);
+    int rc = topo_node_sqlite_member_put(db, ch_id, node_id, join_sig, join_ts, NULL, 0, x25519, ed_pub, joiner_name, NULL);
+    if (rc != 0) DEBUG_ERROR(DEBUG_CATEGORY_CONNECTIVITY, "%s: member_put(joiner) FAILED ch=%s node=0x%016llx rc=%d", CS_ID, ch_id, (unsigned long long)node_id, rc);
     topo_node_sqlite_node_update_verified(db, node_id, joiner_name, x25519, ed_pub, join_ts);
     /* save joiner node_info to local DB */
     if (db && joiner_name[0]) {
@@ -1178,7 +1180,8 @@ static void cs_handle_welcome(struct chat_sync* cs, uint64_t peer,
           }
         }
 
-        topo_node_sqlite_member_put(db, ch_id, node_id, join_sig, join_ts, NULL, 0, x25519, ed_pub, peer_name, NULL);
+        int rc = topo_node_sqlite_member_put(db, ch_id, node_id, join_sig, join_ts, NULL, 0, x25519, ed_pub, peer_name, NULL);
+        if (rc != 0) DEBUG_ERROR(DEBUG_CATEGORY_CONNECTIVITY, "%s: member_put(welcome) FAILED ch=%s node=0x%016llx rc=%d", CS_ID, ch_id, (unsigned long long)node_id, rc);
         topo_node_sqlite_node_update_verified(db, node_id, peer_name, x25519, ed_pub, join_ts);
 
         for (uint8_t j = 0; j < ac; j++) {
@@ -1250,7 +1253,8 @@ static void cs_handle_peer_upsert(struct chat_sync* cs, uint64_t peer,
 
     sqlite3* db = cs->inst->topo_groups->topo_sqlite_db;
 
-    topo_node_sqlite_member_put(db, ch_id, node_id, join_sig, join_ts, NULL, 0, x25519, ed_pub, peer_name, NULL);
+    int rc = topo_node_sqlite_member_put(db, ch_id, node_id, join_sig, join_ts, NULL, 0, x25519, ed_pub, peer_name, NULL);
+    if (rc != 0) DEBUG_ERROR(DEBUG_CATEGORY_CONNECTIVITY, "%s: member_put(peer_upsert) FAILED ch=%s node=0x%016llx rc=%d", CS_ID, ch_id, (unsigned long long)node_id, rc);
     topo_node_sqlite_node_update_verified(db, node_id, peer_name, x25519, ed_pub, join_ts);
     if (db && peer_name[0]) {
         sqlite3_stmt* ns = NULL;
diff --git a/tools/chatgui/transport/member_sync.c b/tools/chatgui/transport/member_sync.c
index a91539f3..ecd99027 100644
--- a/tools/chatgui/transport/member_sync.c
+++ b/tools/chatgui/transport/member_sync.c
@@ -345,9 +345,14 @@ int member_sync_put(struct UTUN_INSTANCE* inst, const char* ch_id,
     if (!inst || !ch_id) return -1;
     sqlite3* db = _db(inst); if (!db) return -1;
 
-    topo_node_sqlite_member_put(db, ch_id, member_id,
+    int rc = topo_node_sqlite_member_put(db, ch_id, member_id,
         join_sig, join_ts, update_sig, update_ts,
         x25519, ed25519, name, NULL);
+    if (rc != 0) {
+        DEBUG_ERROR(DEBUG_CATEGORY_CONNECTIVITY, "%s: member_put FAILED ch=%s id=0x%016llx name=%s rc=%d",
+                    MS_ID, ch_id, (unsigned long long)member_id, name ? name : "", rc);
+        return -1;
+    }
 
     if (addrs_data && addr_count > 0) {
         sqlite3_exec(db, "BEGIN", NULL, NULL, NULL);