O function not work on Signal Entry API

When using Signal Entry APIs, the O function does not work.


or most other futures I have tried, become a market order only. It should become an O+50 order. I have tried this in many different ways or forms, but it seems the O function does not in the Signal Entry API

If I directly use the O function in the trade entry screen, it works fine

Ciould you check the logic, and see if anything seems amiss?