Hello I'm working on a ESP32 project that requires a database with RTree extension. I 'm using this library : https://github.com/siara-cc/esp32-idf-sqlite3 which is based on amalgation 3.31.1 For tables with no rtree it's working fine. For RTree, I added this line in config_ext.h : #define SQLITE_ENABLE_RTREE 1 No problem when I create the virtual table using rtree nor when I add line to this table. When I try to request this table, I got this error : logSQLError undersize RTree blobs in "AIRSPACERTREE_node" Could you please me to understand this error message ?