Futures trading for Nikkei 225 Micro (JPY, OSE)

[Georgeyjy]

N225M@OSE.JPN
https://misc.interactivebrokers.com/cstools/contract_info/v3.10/index.php?action=Futures%20Search&entityId=a28782602&exchanges=OSE.JPN,&lang=en&ib_entity=&wlId=IB&showEntities=Y

i tried symbol N225MH6.OSE.JPN to trade, seems nt does not support constructing instrument id using from_str method with such format.

so i tried to mannually construct raw symbol InstrumentId(Symbol("N225MH6=FUT"), Venue("OSE.JPN")), such format works for the other symbols such as MHIH6.HKFE, but does not work for N225MH6.

am i mssing something or just because such symbol is not supported yet?