Error in RF Process "Get Replenish Task New"

We encountered an error while trying to process a replenishment task through an RF application with the "Get Replenish Task New" module. 

1. Fm Trace Id automatically filled with locationId

2. We tried to fill it with trace Id 

3. Then we input quantity and the screen confirmed the stock condition

4. Screen goes back to the first screen, with Fm Trace Id changed back again to locationId. 

Here I attached the video recording of the error for more details. Please kindly check this issue. Thank you.

Changes to RF code.