Hi, with the latest snapshot I have the following strange error (when trying stuff with Artur's json transfers): internal genr error: aux node mismatch *** error within loop in function gbundle2json I couldn't prepare a minimal example, sorry, it seems subtle. But this line happens inside a loop which changes 'key', and the loop is inside a function receiving the bundle 'b' as an argument. It stumbles over the bundle member "a", and the corresponding value is the string "heyho". But -just found out- that the error goes away if I do b["@key"] instead. thanks sven